Subtract 48/84 from 27/20, Solve 1 7/20

Subtract 48/84 from 27/20

1^st number: 1 7/20, 2^nd number: 48/84

27/20 - 48/84 is 109/140.

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,
27/20 = 27 × 21/20 × 21 = 567/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
48/84 = 48 × 5/84 × 5 = 240/420
Subtract the two like fractions:
567/420 - 240/420 = 567 - 240/420 = 327/420
After reducing the fraction, the answer is 109/140

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