Subtract 90/54 from 27/75, Solve 27/75

Subtract 90/54 from 27/75

1^st number: 27/75, 2^nd number: 1 36/54

27/75 - 90/54 is -98/75.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 54 is 1350

Next, find the equivalent fraction of both fractional numbers with denominator 1350
For the 1st fraction, since 75 × 18 = 1350,
27/75 = 27 × 18/75 × 18 = 486/1350
Likewise, for the 2nd fraction, since 54 × 25 = 1350,
90/54 = 90 × 25/54 × 25 = 2250/1350
Subtract the two like fractions:
486/1350 - 2250/1350 = 486 - 2250/1350 = -1764/1350
After reducing the fraction, the answer is -98/75

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