Subtract 50/80 from 3/7, Solve 3/7

Subtract 50/80 from 3/7

3/7 - 50/80 is -11/56.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 7 × 80 = 560,
3/7 = 3 × 80/7 × 80 = 240/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
50/80 = 50 × 7/80 × 7 = 350/560
Subtract the two like fractions:
240/560 - 350/560 = 240 - 350/560 = -110/560
After reducing the fraction, the answer is -11/56

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