Subtract 80/60 from 60/84, Solve 60/84

Subtract 80/60 from 60/84

1^st number: 60/84, 2^nd number: 1 20/60

60/84 - 80/60 is -13/21.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
60/84 = 60 × 5/84 × 5 = 300/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420
Subtract the two like fractions:
300/420 - 560/420 = 300 - 560/420 = -260/420
After reducing the fraction, the answer is -13/21

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