Subtract 35/49 from 70/80, Solve 70/80

Subtract 35/49 from 70/80

70/80 - 35/49 is 9/56.

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

Next, find the equivalent fraction of both fractional numbers with denominator 3920
For the 1st fraction, since 80 × 49 = 3920,
70/80 = 70 × 49/80 × 49 = 3430/3920
Likewise, for the 2nd fraction, since 49 × 80 = 3920,
35/49 = 35 × 80/49 × 80 = 2800/3920
Subtract the two like fractions:
3430/3920 - 2800/3920 = 3430 - 2800/3920 = 630/3920
After reducing the fraction, the answer is 9/56

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