Question

Lucy used 5(1)/(2) gallons of gas on Sunday and 4(2)/(5) gallons of gas on Monday. How many more gallons of gas did she use on Sunday? Write your answer as a mixed number in simplest form.

Answer 1

1 (1)/(10)

5(1)/(2) - 4(2)/(5)

change into fraction

5x2+1 - 4x5+2

11/2 - 22/5

Find common deniminator : 2 x 5 = 10

11/2 × 5/5 - 22/5 × 2/2

55/10 - 44/10

11/10

Change into mixed fraction

1/1/10