Subtract 45/72 from 4/50, Solve 4/50

Subtract 45/72 from 4/50

4/50 - 45/72 is -109/200.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 72 is 1800

Next, find the equivalent fraction of both fractional numbers with denominator 1800
For the 1st fraction, since 50 × 36 = 1800,
4/50 = 4 × 36/50 × 36 = 144/1800
Likewise, for the 2nd fraction, since 72 × 25 = 1800,
45/72 = 45 × 25/72 × 25 = 1125/1800
Subtract the two like fractions:
144/1800 - 1125/1800 = 144 - 1125/1800 = -981/1800
After reducing the fraction, the answer is -109/200

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