Calculator subtracting two mixed numbers



The calculator performs basic and advanced operations with mixed numbers, fractions, integers, decimals. Mixed fractions are also called mixed numbers. A mixed fraction is a whole number and a proper fraction combined, i.e. one and three-quarters. The calculator evaluates the expression or solves the equation with step-by-step calculation progress information. Solve problems with two or more mixed numbers fractions in one expression.

7 1/2 - 5 3/4 = 7/4 = 1 3/4 = 1.75

Spelled result in words is one and three quarters (or seven quarters).

Calculation steps

  1. Conversion a mixed number 7 1/2 to a improper fraction: 7 1/2 = 7 1/2 = 7 · 2 + 1/2 = 14 + 1/2 = 15/2

    To find new numerator:
    a) Multiply the whole number 7 by the denominator 2. Whole number 7 equally 7 * 2/2 = 14/2
    b) Add the answer from previous step 14 to the numerator 1. New numerator is 14 + 1 = 15
    c) Write a previous answer (new numerator 15) over the denominator 2.

    Seven and one half is fifteen halfs
  2. Conversion a mixed number 5 3/4 to a improper fraction: 5 3/4 = 5 3/4 = 5 · 4 + 3/4 = 20 + 3/4 = 23/4

    To find new numerator:
    a) Multiply the whole number 5 by the denominator 4. Whole number 5 equally 5 * 4/4 = 20/4
    b) Add the answer from previous step 20 to the numerator 3. New numerator is 20 + 3 = 23
    c) Write a previous answer (new numerator 23) over the denominator 4.

    Five and three quarters is twenty-three quarters
  3. Subtract: 15/2 - 23/4 = 15 · 2/2 · 2 - 23/4 = 30/4 - 23/4 = 30 - 23/4 = 7/4
    For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(2, 4) = 4. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 2 × 4 = 8. In the next intermediate step, the fraction result cannot be further simplified by canceling.
    In words - fifteen halfs minus twenty-three quarters = seven quarters.

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