Question

Aubrey used 4/7 liters of paint for a mural in her room and 2/10 liter for a wall in her bathroom. Determine a reasonable estimate for the total amount of paint Aubrey used.

Answer 1

27/35 is the exact answer

7/10 is an estimate

Explanation:

4/7+2/10

Simplify the fraction

4/7+1/5

The common denominator is 35

4/7*5/5 + 1/5 *7/7

20/35 + 7/35

27/35

To estimate

4/7 is close to 1/2

2/10 is close is 1/5

1/2 + 1/5 =

5/10 + 2/10 = 7/10