Subtract 49/80 from 14/21, Solve 14/21

Subtract 49/80 from 14/21

14/21 - 49/80 is 13/240.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 21 × 80 = 1680,
14/21 = 14 × 80/21 × 80 = 1120/1680
Likewise, for the 2nd fraction, since 80 × 21 = 1680,
49/80 = 49 × 21/80 × 21 = 1029/1680
Subtract the two like fractions:
1120/1680 - 1029/1680 = 1120 - 1029/1680 = 91/1680
After reducing the fraction, the answer is 13/240

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