Subtract 14/84 from 28/20, Solve 1 8/20

Subtract 14/84 from 28/20

1^st number: 1 8/20, 2^nd number: 14/84

28/20 - 14/84 is 37/30.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 20 × 21 = 420,
28/20 = 28 × 21/20 × 21 = 588/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
14/84 = 14 × 5/84 × 5 = 70/420
Subtract the two like fractions:
588/420 - 70/420 = 588 - 70/420 = 518/420
After reducing the fraction, the answer is 37/30
In mixed form: 17/30

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