Fraction calculator
This fraction calculator performs all fraction operations - addition, subtraction, multiplication, division and evaluates expressions with fractions. It also shows detailed step-by-step information.
The result:
3/5 * 5/6 = 1/2 = 0.5
The result spelled out in words is one half.How do we solve fractions step by step?
- Multiple: 3/5 * 5/6 = 3 · 5/5 · 6 = 15/30 = 1 · 15/2 · 15 = 1/2 
 Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(15, 30) = 15. In the following intermediate step, cancel by a common factor of 15 gives 1/2.
 In other words, three fifths multiplied by five sixths equals one half.
Rules for expressions with fractions:
Fractions - write a forward slash to separate the numerator and the denominator, i.e., for five-hundredths, enter 5/100. If you use mixed numbers, leave a space between the whole and fraction parts.Mixed numerals (mixed numbers or fractions) - keep one space between the whole part and fraction and use a forward slash to input fraction i.e., 1 2/3 . A negative mixed fraction write for example as -5 1/2.
A slash is both a sign for fraction line and division, use a colon (:) for division fractions i.e., 1/2 : 1/3.
Decimals (decimal numbers) enter with a decimal dot . and they are automatically converted to fractions - i.e. 1.45.
Math Symbols
| Symbol | Symbol name | Symbol Meaning | Example | 
|---|---|---|---|
| + | plus sign | addition | 1/2 + 1/3 | 
| - | minus sign | subtraction | 1 1/2 - 2/3 | 
| * | asterisk | multiplication | 2/3 * 3/4 | 
| × | times sign | multiplication | 2/3 × 5/6 | 
| : | division sign | division | 1/2 : 3 | 
| / | division slash | division | 1/3 / 5 | 
| : | colon | complex fraction | 1/2 : 1/3 | 
| ^ | caret | exponentiation / power | 1/4^3 | 
| () | parentheses | calculate expression inside first | -3/5 - (-1/4) | 
Examples:
• adding fractions: 2/4 + 3/4• subtracting fractions: 2/3 - 1/2
• multiplying fractions: 7/8 * 3/9
• dividing Fractions: 1/2 : 3/4
• reciprocal of a fraction: 1 : 3/4
• square of a fraction: 2/3 ^ 2
• cube of a fraction: 2/3 ^ 3
• exponentiation of a fraction: 1/2 ^ 4
• fractional exponents: 16 ^ 1/2
• adding fractions and mixed numbers: 8/5 + 6 2/7
• dividing integer and fraction: 5 ÷ 1/2
• complex fractions: 5/8 : 2 2/3
• decimal to fraction: 0.625
• Fraction to Decimal: 1/4
• Fraction to Percent: 1/8 %
• comparing fractions: 1/4 2/3
• square root of a fraction: sqrt(1/16)
• expression with brackets: 1/3 * (1/2 - 3 3/8)
• compound fraction: 3/4 of 5/7
• fractions multiple: 2/3 of 3/5
• divide to find the quotient: 3/5÷2/3
The calculator follows well-known rules for the order of operations. The most common mnemonics for remembering this order are:
- PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.
 
-  BEDMAS: Brackets, Exponents, Division, Multiplication, Addition, Subtraction.
 
-  BODMAS: Brackets, Order (or "Of"), Division, Multiplication, Addition, Subtraction.
 
- GEMDAS: Grouping symbols (brackets: (){}), Exponents, Multiplication, Division, Addition, Subtraction.
 
- MDAS: Multiplication and Division (same precedence), Addition and Subtraction (same precedence). MDAS is a subset of PEMDAS.
1. Multiplication/Division vs. Addition/Subtraction: Always perform multiplication and division *before* addition and subtraction.
2. Left-to-Right Rule: Operators with the same precedence (e.g., + and -, or * and /) must be evaluated from left to right.
Fractions in word problems:
- A cake 2  Karen sliced a cake into 10 slices. She ate 2/10 of it and after some time she ate another 4/10 of it. How much of the cake did Karen eat? Karen sliced a cake into 10 slices. She ate 2/10 of it and after some time she ate another 4/10 of it. How much of the cake did Karen eat?
- 10 children  Ten children in the park, four-tenths are wearing a red shirt. How many children in the park are wearing a red shirt? Ten children in the park, four-tenths are wearing a red shirt. How many children in the park are wearing a red shirt?
- Divide 42  Divide. Write your answer in the lowest terms as a proper or improper fraction. (8/25)÷(-4/5) Divide. Write your answer in the lowest terms as a proper or improper fraction. (8/25)÷(-4/5)
- Trent  Trent operates a hot dog stand. On Wednesday, he used two bags of hot dog buns. On Thursday, he used 1/5 as many hot dog buns as Wednesday. How many bags of hot dog buns Trent used on Thursday? Trent operates a hot dog stand. On Wednesday, he used two bags of hot dog buns. On Thursday, he used 1/5 as many hot dog buns as Wednesday. How many bags of hot dog buns Trent used on Thursday?
- New bridge  Thanks to the new bridge, the road between A and B has been cut to one-third and is now 10km long. How much did the road between A and B measure before? Thanks to the new bridge, the road between A and B has been cut to one-third and is now 10km long. How much did the road between A and B measure before?
- Rolls  Mom bought 13 rolls. Dad ate 3.5 rolls. How many rolls were left when Peter ate two at dinner? Mom bought 13 rolls. Dad ate 3.5 rolls. How many rolls were left when Peter ate two at dinner?
- Robotics team  The 4 robotics team members held a car wash to raise money. To attract customers, each person held a sign by the road for an equal portion of the car wash, which lasted 3 hours in all. How long did each person hold the sign? The 4 robotics team members held a car wash to raise money. To attract customers, each person held a sign by the road for an equal portion of the car wash, which lasted 3 hours in all. How long did each person hold the sign?
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Last Modified: August 28, 2025
