Subtract 30/16 from 4/84, Solve 4/84

Subtract 30/16 from 4/84

1^st number: 4/84, 2^nd number: 1 14/16

4/84 - 30/16 is -307/168.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 84 × 4 = 336,
4/84 = 4 × 4/84 × 4 = 16/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
30/16 = 30 × 21/16 × 21 = 630/336
Subtract the two like fractions:
16/336 - 630/336 = 16 - 630/336 = -614/336
After reducing the fraction, the answer is -307/168

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