Justin spent
13 of his allowance on a frisbee. He spent
34 of the remaining allowance on a glowstick.
- What fraction of his allowance was left?
- If he had left $18, how much allowance did Justin have at first?
(a)
Fraction of allowance left after spending on a frisbee
= 1 -
13=
23Fraction of remaining allowance left
= 1 -
34=
14Fraction of his allowance left
=
23 x
14=
212(b)
Amount that Justin had at first = 12 u
Amount that Justin had left = 2 u
2 u = 18
1 u = 18 ÷ 2 = 9
Total amount that Justin had at first
= 12 u
= 12 x 9
= $108
Answer(s): (a)
212; (b) $108