Subtract 21/54 from 32/7, Solve 4 4/7

Subtract 21/54 from 32/7

1^st number: 4 4/7, 2^nd number: 21/54

32/7 - 21/54 is 527/126.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 7 × 54 = 378,
32/7 = 32 × 54/7 × 54 = 1728/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378
Subtract the two like fractions:
1728/378 - 147/378 = 1728 - 147/378 = 1581/378
After reducing the fraction, the answer is 527/126
In mixed form: 423/126

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