Subtract 9/80 from 56/49, Solve 1 7/49

Subtract 9/80 from 56/49

1^st number: 1 7/49, 2^nd number: 9/80

56/49 - 9/80 is 577/560.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 80 is 3920

Next, find the equivalent fraction of both fractional numbers with denominator 3920
For the 1st fraction, since 49 × 80 = 3920,
56/49 = 56 × 80/49 × 80 = 4480/3920
Likewise, for the 2nd fraction, since 80 × 49 = 3920,
9/80 = 9 × 49/80 × 49 = 441/3920
Subtract the two like fractions:
4480/3920 - 441/3920 = 4480 - 441/3920 = 4039/3920
After reducing the fraction, the answer is 577/560
In mixed form: 117/560

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