Subtract 20/12 from 15/50, Solve 15/50

Subtract 20/12 from 15/50

1^st number: 15/50, 2^nd number: 1 8/12

15/50 - 20/12 is -41/30.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 50 × 6 = 300,
15/50 = 15 × 6/50 × 6 = 90/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
20/12 = 20 × 25/12 × 25 = 500/300
Subtract the two like fractions:
90/300 - 500/300 = 90 - 500/300 = -410/300
After reducing the fraction, the answer is -41/30

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