Subtract 80/60 from 9/49, Solve 9/49

Subtract 80/60 from 9/49

1^st number: 9/49, 2^nd number: 1 20/60

9/49 - 80/60 is -169/147.

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

Next, find the equivalent fraction of both fractional numbers with denominator 2940
For the 1st fraction, since 49 × 60 = 2940,
9/49 = 9 × 60/49 × 60 = 540/2940
Likewise, for the 2nd fraction, since 60 × 49 = 2940,
80/60 = 80 × 49/60 × 49 = 3920/2940
Subtract the two like fractions:
540/2940 - 3920/2940 = 540 - 3920/2940 = -3380/2940
After reducing the fraction, the answer is -169/147

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