Question

Katherine uses

7/10
of a gallon of red paint to paint 3/5
of her wall.
How many gallons of red paint will she use to paint her whole wall?
A) 21/50
B)7/15
C) 1 1/6
D) 1 3/10

Answer 1

1 1/6 gallons will paint the whole wall

Explanation:

7/ 10 gallon paints 3/5 of wall

x gallon will paint 1/1 of wall

7/10 * 1 = x * 3/5

7/10 = 3x/5

3x * 10 = 5 * 7

30x = 35

x = 35/30

x = 7/6 = 1 1/6 gallons