Operations with Fractions Review

Operations with Fractions Review

Adding, subtracting, multiplying and dividing

To ADD or SUBTRACT fractions, they must have a common denominator

To multiply fractions, multiply the numerators, and multiply the denominators

When multiplying, don’t forget to cross cancel, if you can

To divide fractions, invert the SECOND fraction, then multiply

KEEP CHANGE FLIP

Multiple Choice

Change the improper fraction to a mixed number.

• 1     1/10
• 2      1/2
• 2     2/5
• 2      1/4

Multiple Choice

• 2
• 4
• 1
• 1/8

Multiple Choice

⁴/₉  ÷  -¹/₂

• • ^{- 8}/₉

• ⁵/₁₁
• ⁶/₁₀
• • ^{- 4}/₁₈

Multiple Choice

$$2\ \frac{1}{3}\ \div\ -\ 7$$

• ^-1/3

• -49/3

• -3

• ³/₉

Multiple Choice

¼ × -⅚ =

• • ^{- 1}/₄

• • ^{- 6}/₂₀

• • ^{- 5}/₂₄

• • ^{- 3}/₂₀

Multiple Choice

1 ¼ × 2 ¾ =

• 3 ⁷/₁₆
• 1 ¹/₂
• 2 ³/₁₆
• 4 ¹/₄

Multiple Choice

⅙ × ⅓ =

• ¹/₃
• ¹/₁₈
• ²/₉
• ¹/₉

Multiple Choice

Convert the mixed fraction to a improper fraction.

• 22 /9
• 20/9
• 31 / 9
• 4/6

Multiple Choice

What is 9/10 - 3/4?

• 5/7
• 3/20
• 3/8 
• 9/10

Multiple Choice

$$5\ \frac{\text{2}}{3}\ +\ 8\ \frac{3}{4}$$

• $$14\ \frac{5}{12}$$

• $$13\ \frac{5}{12}$$

• $$13\ \frac{5}{7}$$

• $$2\ \frac{1}{12}$$

Multiple Choice

• 13/15
• 1 7/12
• 1
• 9/15

Multiple Choice

$$2\ \frac{7}{8}\ -\ 3\ \frac{1}{4}$$

• $$-1\ \frac{1}{4}$$

• $$-\ 1\frac{6}{8}$$

• ³/₈

• • ^{- 3}/₈

Multiple Choice

What is the least common denominator of 1/2 and 3/7?

• 2
• 14
• 7
• 28