Subtract 3/80 from 72/49, Solve 1 23/49

Subtract 3/80 from 72/49

1^st number: 1 23/49, 2^nd number: 3/80

72/49 - 3/80 is 5613/3920.

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,
72/49 = 72 × 80/49 × 80 = 5760/3920
Likewise, for the 2nd fraction, since 80 × 49 = 3920,
3/80 = 3 × 49/80 × 49 = 147/3920
Subtract the two like fractions:
5760/3920 - 147/3920 = 5760 - 147/3920 = 5613/3920
In mixed form: 11693/3920

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