Question

Can you spend 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

Answer 1

For this case we assume that the initial amount of money is $20.

So:

• $\frac{1} {5}$ of $20 in movies:

$\frac {1} {5} (20) = 4$

• $\frac {3} {8}$ of $20 in snacks:

$\frac {3} {8} (20) = 7.5$

• $\frac {2} {7}$ of $20 in games:

$\frac {2} {7} (20) = 5.71$

Adding we have:

$4 + 7.5 + 5.71 = 17.21$

Ken has:

$20-17.21 = 2.79$

Answer:

Ken can spend what he planned and he has $2.79 left.