Subtract 81/49 from 12/9, Solve 1 3/9

Subtract 81/49 from 12/9

1^st number: 1 3/9, 2^nd number: 1 32/49

12/9 - 81/49 is -47/147.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 49 is 441

Next, find the equivalent fraction of both fractional numbers with denominator 441
For the 1st fraction, since 9 × 49 = 441,
12/9 = 12 × 49/9 × 49 = 588/441
Likewise, for the 2nd fraction, since 49 × 9 = 441,
81/49 = 81 × 9/49 × 9 = 729/441
Subtract the two like fractions:
588/441 - 729/441 = 588 - 729/441 = -141/441
After reducing the fraction, the answer is -47/147

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