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.