Subtract 28/7 from 3/27, Solve 3/27

Subtract 28/7 from 3/27

1^st number: 3/27, 2^nd number: 4 0/7

3/27 - 28/7 is -35/9.

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

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 27 × 7 = 189,
3/27 = 3 × 7/27 × 7 = 21/189
Likewise, for the 2nd fraction, since 7 × 27 = 189,
28/7 = 28 × 27/7 × 27 = 756/189
Subtract the two like fractions:
21/189 - 756/189 = 21 - 756/189 = -735/189
After reducing the fraction, the answer is -35/9

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