Math tips? Help!????

Lets say 84/2.68.... Would be 31.343284....How can I calculate that with paper n mind (aka without calculator) quickly and accurately?

2 Answers

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  • 9 years ago
    Favorite Answer

    84 / 2.68 = 42/ 1.34 = 21 / 0.67 = 2100/67 = 31.34

  • Anonymous
    9 years ago

    You divide both numerator and denominator by 4 you get 21/0.67 if you multiply both numerator and denominator by 100 you get 2100/67, in this form it is lot easier to do.

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