Subtract 21/27 from 25/7, Solve 3 4/7

Subtract 21/27 from 25/7

1^st number: 3 4/7, 2^nd number: 21/27

25/7 - 21/27 is 176/63.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 7 × 27 = 189,
25/7 = 25 × 27/7 × 27 = 675/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
21/27 = 21 × 7/27 × 7 = 147/189
Subtract the two like fractions:
675/189 - 147/189 = 675 - 147/189 = 528/189
After reducing the fraction, the answer is 176/63
In mixed form: 250/63

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