Subtract 5/7 from 20/50, Solve 20/50

Subtract 5/7 from 20/50

20/50 - 5/7 is -11/35.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 7 is 350

Next, find the equivalent fraction of both fractional numbers with denominator 350
For the 1st fraction, since 50 × 7 = 350,
20/50 = 20 × 7/50 × 7 = 140/350
Likewise, for the 2nd fraction, since 7 × 50 = 350,
5/7 = 5 × 50/7 × 50 = 250/350
Subtract the two like fractions:
140/350 - 250/350 = 140 - 250/350 = -110/350
After reducing the fraction, the answer is -11/35

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