8.10 Fractions and Percents to find a Whole Number

SRB 75, 52 and 53

Unit Fractions

Fractions with a numerator of 1 are called Unit Fractions. ½ or ¼ or 1/10 or 1/1000

Unit fractions help solve fraction problems in real life.

Examples

Alicia baked cookies. She gave away 24 cookies which was 3/5 of her cookies. How many did Alicia bake?

3/5 = 24

1/5 = 8

8 8 8 8 8

5/5 = 40.

40 Cookies were baked

Examples

A radio is on sale for $120.00; this is 60% off of the list price. What was the original price of the radio.

60% = 60/100 = 6/10 = 3/5

3/5 = 120

1/5 = 40

40 40 40 40 40

5/5 = 200.

$200 was the original price of the radio.