Subtract 30/27 from 12/49, Solve 12/49

Subtract 30/27 from 12/49

1^st number: 12/49, 2^nd number: 1 3/27

12/49 - 30/27 is -382/441.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 27 is 1323

Next, find the equivalent fraction of both fractional numbers with denominator 1323
For the 1st fraction, since 49 × 27 = 1323,
12/49 = 12 × 27/49 × 27 = 324/1323
Likewise, for the 2nd fraction, since 27 × 49 = 1323,
30/27 = 30 × 49/27 × 49 = 1470/1323
Subtract the two like fractions:
324/1323 - 1470/1323 = 324 - 1470/1323 = -1146/1323
After reducing the fraction, the answer is -382/441

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