Subtract 1/80 from 70/49, Solve 1 21/49

Subtract 1/80 from 70/49

1^st number: 1 21/49, 2^nd number: 1/80

70/49 - 1/80 is 793/560.

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,
70/49 = 70 × 80/49 × 80 = 5600/3920
Likewise, for the 2nd fraction, since 80 × 49 = 3920,
1/80 = 1 × 49/80 × 49 = 49/3920
Subtract the two like fractions:
5600/3920 - 49/3920 = 5600 - 49/3920 = 5551/3920
After reducing the fraction, the answer is 793/560
In mixed form: 1233/560

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