# Adding + rational numbers - math problems

#### Number of problems found: 21

Why does 1 3/4 + 2 9/10 equal 4.65? How do you solve this?
• Expression 8
Evaluate this expressions: a) 5[3 + 4(2.8 - 3)] b) 5×(8-4)÷4-2
• Evaluate
The division of numbers 18 and 6 increase by product of the numbers 156 and 0.001
• Fruits 2
An apple costs 7p and a melon costs seven times more. How much will 6 apples and 2 melons cost
• Fraction
Fraction ? write as fraction a/b, a, b is integers numerator/denominator.
Number 839 divide into the two addends that the first was 17 greater than 60% of the second. Determine these addends.
• The temperature
The temperature at 1:00 was 10 F. Between 1:00 and 2:00, the temperature dropped 15F. Between 2:00 and 3:00, the temperature rose 3F. What is the temperature at 3:00?
• Wire
From wire 53 meters long they cut of 12.1 m and then 13.1 m. How many meters of wire left?
Andy had \$5.95 in his pocket. His father gave him another \$3.55. How much does Andy have altogether now?
• Time
Write time in minutes rounded to one decimal place: 3 h 48 m 45 s.
• Decimal to fraction
Write decimal number 8.638333333 as a fraction A/B in the basic form. Given decimal has infinite repeating figures.
• A dolphin
A dolphin was swimming 17 meters below the surface of the ocean. It located a squid and dove down 4 more meters to eat it. What is the location of the dolphin now relative to the surface?
• David number
Jana and David train the addition of the decimal numbers so that each of them will write a single number and these two numbers then add up. The last example was 11.11. David's number had the same number of digits before the decimal point, the Jane's numbe
• Relay-race
Kate ran 170 meters at 29.8 seconds, Suzan at 29.3 seconds, Roza at 34 seconds and Žofka at 30.4 seconds. How long took to run 4x170 m relay-race?
• Store
One meter of the textile was discounted by 2 USD. Now 9 m of textile cost as before 8 m. Calculate the old and new price of 1 m of the textile.
• Homework
The monthly fee for the phone is 12 USD and for phone unit 0.08 USD. How much family pay phone in the first quarter Q1, if on January 1 had on the counter 97362 units and on April 1 97946 units.
• Simplify 3
Simplify mixed numerals expression: 8 1/4- 3 2/5 - (2 1/3 - 1/4) Show your solution.
• Coffee
In-stock are three kinds of branded coffee prices: I. Kind. .. .. .205 Kc/kg II. Kind. .. .. .274 Kc/kg III. Kind. .. .. 168 Kc/kg Mixing these three species in the ratio 8:5:6 create a mixture. What will be the price of 100 grams of this mixture?
• Water
Mix 68 l of water with a temperature of 87 °C, 17 l warm of 42 °C, and 55 l water of 50 °C. What is the temperature of the mixed water immediately after mixing?
• Diophantus
We know little about this Greek mathematician from Alexandria, except that he lived around 3rd century A. D. Thanks to an admirer of his, who described his life through an algebraic riddle, we know at least something about his life. Diophantus's youth las

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Adding Problems. Rational numbers - math word problems.