Subtract 14/20 from 45/21, Solve 2 3/21

Subtract 14/20 from 45/21

1^st number: 2 3/21, 2^nd number: 14/20

45/21 - 14/20 is 101/70.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 21 × 20 = 420,
45/21 = 45 × 20/21 × 20 = 900/420
Likewise, for the 2nd fraction, since 20 × 21 = 420,
14/20 = 14 × 21/20 × 21 = 294/420
Subtract the two like fractions:
900/420 - 294/420 = 900 - 294/420 = 606/420
After reducing the fraction, the answer is 101/70
In mixed form: 131/70

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