Subtract 9/49 from 18/12, Solve 1 6/12

Subtract 9/49 from 18/12

1^st number: 1 6/12, 2^nd number: 9/49

18/12 - 9/49 is 129/98.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 49 is 588

Next, find the equivalent fraction of both fractional numbers with denominator 588
For the 1st fraction, since 12 × 49 = 588,
18/12 = 18 × 49/12 × 49 = 882/588
Likewise, for the 2nd fraction, since 49 × 12 = 588,
9/49 = 9 × 12/49 × 12 = 108/588
Subtract the two like fractions:
882/588 - 108/588 = 882 - 108/588 = 774/588
After reducing the fraction, the answer is 129/98
In mixed form: 131/98

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