Subtract 20/84 from 7/50, Solve 7/50

Subtract 20/84 from 7/50

7/50 - 20/84 is -103/1050.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 84 is 2100

Next, find the equivalent fraction of both fractional numbers with denominator 2100
For the 1st fraction, since 50 × 42 = 2100,
7/50 = 7 × 42/50 × 42 = 294/2100
Likewise, for the 2nd fraction, since 84 × 25 = 2100,
20/84 = 20 × 25/84 × 25 = 500/2100
Subtract the two like fractions:
294/2100 - 500/2100 = 294 - 500/2100 = -206/2100
After reducing the fraction, the answer is -103/1050

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