Subtract 72/15 from 15/50, Solve 15/50

Subtract 72/15 from 15/50

1^st number: 15/50, 2^nd number: 4 12/15

15/50 - 72/15 is -9/2.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 15 is 150

Next, find the equivalent fraction of both fractional numbers with denominator 150
For the 1st fraction, since 50 × 3 = 150,
15/50 = 15 × 3/50 × 3 = 45/150
Likewise, for the 2nd fraction, since 15 × 10 = 150,
72/15 = 72 × 10/15 × 10 = 720/150
Subtract the two like fractions:
45/150 - 720/150 = 45 - 720/150 = -675/150
After reducing the fraction, the answer is -9/2

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