Question

Ken spent 1/5 of his allowance on a movie, 3/8 on snacks, and 2/7 on games. If his allowance was $20, how much did Ken have left?

Answer 1

1/5 of 20 is $4. So, 20-4=$16 remaining.
3/8 of 16 is $7.50. So, 16-7.50= $8.50 remaining.
2/7 of 8.5 is $2.43. So, 8.50-2.43 is $6.07

Answer: Ken has $6.07 left after all his purchases.

Answer 2

Answer:

Ken is left with $2.79.

Step-by-step explanation:

We are given the following information in the question:

Ken allowance =  $20

Money spent on movies =

$\displaystyle\frac{1}{5}\times 20 = \ 4$

Money spent n snacks =

$\displaystyle\frac{3}{8}\times 20 = \ 7.5$

Money spent on games =

$\displaystyle\frac{2}{7}\times 20 = \ 5.71$

Total money spent =

$4 + 7.5 + 5.71 = \ 17.21$

Money left =

$=\text{Allowance}-\text{ Total money spent}\\= 20 - 17.21\\=\ 2.79$

Ken is left with $2.79.