Subtract 40/14 from 30/27, Solve 1 3/27

Subtract 40/14 from 30/27

1^st number: 1 3/27, 2^nd number: 2 12/14

30/27 - 40/14 is -110/63.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 14 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
30/27 = 30 × 14/27 × 14 = 420/378
Likewise, for the 2nd fraction, since 14 × 27 = 378,
40/14 = 40 × 27/14 × 27 = 1080/378
Subtract the two like fractions:
420/378 - 1080/378 = 420 - 1080/378 = -660/378
After reducing the fraction, the answer is -110/63

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