Subtract 80/60 from 14/21, Solve 14/21

Subtract 80/60 from 14/21

1^st number: 14/21, 2^nd number: 1 20/60

14/21 - 80/60 is -2/3.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 21 × 20 = 420,
14/21 = 14 × 20/21 × 20 = 280/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420
Subtract the two like fractions:
280/420 - 560/420 = 280 - 560/420 = -280/420
After reducing the fraction, the answer is -2/3

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