Benchmark Fractions

What do you need to have when adding unlike fractions?

• common denominator

• common numerator

• common numerator and denominator

_{True or False?}

• True

• False

• A

• B

• C

• D

• A

• B

• C

• D

What is a benchmark fraction?

• Common denominators that we can measure or judge against, when measuring, comparing or ordering other fractions.

• Common fractions that we can measure or judge against, when measuring, comparing or ordering other fractions.

• Common percentages that we can measure or judge against, when measuring, comparing or ordering other fractions.

• Common decimals that we can measure or judge against, when measuring, comparing or ordering other fractions.

A common fraction used as a point of reference

• Benchmark Fraction

• Whole fraction

• Improper fraction

• Mixed fraction

A known fraction that is commonly used for estimating is called a ________.

• benchmark fraction

• common fractions

• equivalent fraction

• fraction

A BENCHMARK fraction is used to help you....

• compare fractions

• like denominators

• call your mom

• subtract

Order the benchmark fractions 1/3, 1/2, and 2/3 from least to greatest.

• 1/3, 2/3, 1/2

• 2/3, 1/3, 1/2

• 1/3, 1/2, 2/3

• 1/2, 1/3, 2/3

3/4

• 0.34

• 3.4

• 0.25

• 0.75