Adding and Subtracting Rational Numbers
Practice adding and subtracting rational numbers, including fractions, decimals, and mixed numbers.
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Adding and Subtracting Rational Numbers
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Read each question carefully and solve. Show your work for full credit.
1. Add the following fractions. Simplify your answer to the lowest terms:
a) 3/4 + 1/8
b) 2/3 + (-1/6)
2. Subtract the following fractions. Simplify your answer to the lowest terms:
a) 5/6 - 1/3
b) 7/10 - (-1/5)
3. Fill in the blanks with the correct answer:
a) 2.5 + 3.75 =
b) 8.2 - 4.9 =
c) -1.5 + 0.75 =
d) -3.2 - (-1.8) =
4. What is the sum of -2 1/2 and 1 3/4?
-3/4
-4 1/4
3/4
4 1/4
5. True or False: When adding two rational numbers with different signs, you always subtract their absolute values and keep the sign of the number with the larger absolute value.
True
False
6. A recipe calls for 1 1/4 cups of flour. If you only have 3/4 cups of flour, how much more flour do you need?