Subtract 50/54 from 7/5, Solve 1 2/5

Subtract 50/54 from 7/5

1^st number: 1 2/5, 2^nd number: 50/54

7/5 - 50/54 is 64/135.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 5 × 54 = 270,
7/5 = 7 × 54/5 × 54 = 378/270
Likewise, for the 2nd fraction, since 54 × 5 = 270,
50/54 = 50 × 5/54 × 5 = 250/270
Subtract the two like fractions:
378/270 - 250/270 = 378 - 250/270 = 128/270
After reducing the fraction, the answer is 64/135

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