Compare Fractions Using Benchmarks

If you use 1/2 as a benchmark, which fraction is greater: 7/8 or 5/6?

• 1/2

• 3/4

• 5/6

• 7/8

Compare the fractions 2/5 and 3/7 using 1/4 as a benchmark.

• 2/5 < 1/4 and 3/7 < 1/4

• 2/5 > 1/4 and 3/7 < 1/4

• 2/5 = 1/4 and 3/7 = 1/4

• 2/5 < 1/4 and 3/7 > 1/4

If you use 1/2 as a benchmark, which fraction is greater: 4/7 or 3/5?

• 5/8

• 1/2

• 4/7

• 3/5

How can you compare fractions with unlike denominators using benchmarks?

• By using benchmark fractions like, 0, 1/2 or 1

• By finding a common denominator

• By multiplying the denominators

• By converting all fractions to decimals

• Less than <

• Greater than >

• Equal to =

What is a common benchmark used to compare and order fractions?

• 20

• 0

• 5

• 10

Look at the shaded model.  Which number sentence is true?

• 1/8<3/8

• 3/8<1/8

• 7/8<5/8

• 5/8>1/8

1/2​ ​ (a)   5/10

• =

• <

• <

• not equivalent

• equivalent

• benchmark fractions

• mixed numbers

• common denominators

• equivalent fractions