Subtract 42/50 from 84/54, Solve 1 30/54

Subtract 42/50 from 84/54

1^st number: 1 30/54, 2^nd number: 42/50

84/54 - 42/50 is 161/225.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1350
For the 1st fraction, since 54 × 25 = 1350,
84/54 = 84 × 25/54 × 25 = 2100/1350
Likewise, for the 2nd fraction, since 50 × 27 = 1350,
42/50 = 42 × 27/50 × 27 = 1134/1350
Subtract the two like fractions:
2100/1350 - 1134/1350 = 2100 - 1134/1350 = 966/1350
After reducing the fraction, the answer is 161/225

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