Subtract 20/84 from 5/30, Solve 5/30

Subtract 20/84 from 5/30

5/30 - 20/84 is -1/14.

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

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 30 × 14 = 420,
5/30 = 5 × 14/30 × 14 = 70/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420
Subtract the two like fractions:
70/420 - 100/420 = 70 - 100/420 = -30/420
After reducing the fraction, the answer is -1/14

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