### Home > CC1 > Chapter 3 > Lesson 3.1.6 > Problem 3-85

3-85.

David wants to find

How could

be written using decimals? What is the sum as a decimal? 0.3 + 0.21 = 0.51

How could your answer from part (a) be written as a fraction?

Use a denominator of 100.

Rewrite

as a fraction that could be added easily to . Write as a fraction with a denominator of 100.