Subtract 81/49 from 9/36, Solve 9/36

Subtract 81/49 from 9/36

1^st number: 9/36, 2^nd number: 1 32/49

9/36 - 81/49 is -275/196.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 49 is 1764

Next, find the equivalent fraction of both fractional numbers with denominator 1764
For the 1st fraction, since 36 × 49 = 1764,
9/36 = 9 × 49/36 × 49 = 441/1764
Likewise, for the 2nd fraction, since 49 × 36 = 1764,
81/49 = 81 × 36/49 × 36 = 2916/1764
Subtract the two like fractions:
441/1764 - 2916/1764 = 441 - 2916/1764 = -2475/1764
After reducing the fraction, the answer is -275/196

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