Subtract 72/54 from 18/50, Solve 18/50

Subtract 72/54 from 18/50

1^st number: 18/50, 2^nd number: 1 18/54

18/50 - 72/54 is -73/75.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 54 is 1350

Next, find the equivalent fraction of both fractional numbers with denominator 1350
For the 1st fraction, since 50 × 27 = 1350,
18/50 = 18 × 27/50 × 27 = 486/1350
Likewise, for the 2nd fraction, since 54 × 25 = 1350,
72/54 = 72 × 25/54 × 25 = 1800/1350
Subtract the two like fractions:
486/1350 - 1800/1350 = 486 - 1800/1350 = -1314/1350
After reducing the fraction, the answer is -73/75

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