### Brain Teasers

# Threes and Sevens

Using the four digits 3,3,7,7 and the mathematical operators +,-,*,/ write an expression equal to 24. You must use each digit exactly once, but may use each operator multiple times, or not at all. Parentheses are allowed. The following would be a valid expression:

(7 + 3)/(7 + 3) = 1

(7 + 3)/(7 + 3) = 1

### Hint

Think fractions.### Answer

(3 + 3/7) * 7 = 24Hide Hint Show Hint Hide Answer Show Answer

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