Subtract 70/15 from 14/84, Solve 14/84

Subtract 70/15 from 14/84

1^st number: 14/84, 2^nd number: 4 10/15

14/84 - 70/15 is -9/2.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
14/84 = 14 × 5/84 × 5 = 70/420
Likewise, for the 2nd fraction, since 15 × 28 = 420,
70/15 = 70 × 28/15 × 28 = 1960/420
Subtract the two like fractions:
70/420 - 1960/420 = 70 - 1960/420 = -1890/420
After reducing the fraction, the answer is -9/2

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