John spent 1/2 of his money in the supermarket and 1/3 in the store, what fraction of the money does he have left? And if he has $100 how much money did he originally have?



Answer :

$600

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Add up the fractions John spent:

  • 1/2 + 1/3 = 5/6

This means he spent 5/6 of his money, so he has:

  • 1 - 5/6 = 1/6 left

If he has $100 left, his original amount can be calculated by dividing $100 by 1/6:

  • $100 ÷ 1/6 =
  • $100 × 6 =
  • $600

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