Subtract 49/30 from 4/84, Solve 4/84

Subtract 49/30 from 4/84

1^st number: 4/84, 2^nd number: 1 19/30

4/84 - 49/30 is -111/70.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
4/84 = 4 × 5/84 × 5 = 20/420
Likewise, for the 2nd fraction, since 30 × 14 = 420,
49/30 = 49 × 14/30 × 14 = 686/420
Subtract the two like fractions:
20/420 - 686/420 = 20 - 686/420 = -666/420
After reducing the fraction, the answer is -111/70

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