Subtract 42/8 from 27/49, Solve 27/49

Subtract 42/8 from 27/49

1^st number: 27/49, 2^nd number: 5 2/8

27/49 - 42/8 is -921/196.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392

Next, find the equivalent fraction of both fractional numbers with denominator 392
For the 1st fraction, since 49 × 8 = 392,
27/49 = 27 × 8/49 × 8 = 216/392
Likewise, for the 2nd fraction, since 8 × 49 = 392,
42/8 = 42 × 49/8 × 49 = 2058/392
Subtract the two like fractions:
216/392 - 2058/392 = 216 - 2058/392 = -1842/392
After reducing the fraction, the answer is -921/196

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