Subtract 18/49 from 80/60, Solve 1 20/60

Subtract 18/49 from 80/60

1^st number: 1 20/60, 2^nd number: 18/49

80/60 - 18/49 is 142/147.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 49 is 2940

Next, find the equivalent fraction of both fractional numbers with denominator 2940
For the 1st fraction, since 60 × 49 = 2940,
80/60 = 80 × 49/60 × 49 = 3920/2940
Likewise, for the 2nd fraction, since 49 × 60 = 2940,
18/49 = 18 × 60/49 × 60 = 1080/2940
Subtract the two like fractions:
3920/2940 - 1080/2940 = 3920 - 1080/2940 = 2840/2940
After reducing the fraction, the answer is 142/147

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