Subtract 32/20 from 27/49, Solve 27/49

Subtract 32/20 from 27/49

1^st number: 27/49, 2^nd number: 1 12/20

27/49 - 32/20 is -257/245.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980

Next, find the equivalent fraction of both fractional numbers with denominator 980
For the 1st fraction, since 49 × 20 = 980,
27/49 = 27 × 20/49 × 20 = 540/980
Likewise, for the 2nd fraction, since 20 × 49 = 980,
32/20 = 32 × 49/20 × 49 = 1568/980
Subtract the two like fractions:
540/980 - 1568/980 = 540 - 1568/980 = -1028/980
After reducing the fraction, the answer is -257/245

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