Subtract 81/35 from 63/36, Solve 1 27/36

Subtract 81/35 from 63/36

1^st number: 1 27/36, 2^nd number: 2 11/35

63/36 - 81/35 is -79/140.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 35 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 36 × 35 = 1260,
63/36 = 63 × 35/36 × 35 = 2205/1260
Likewise, for the 2nd fraction, since 35 × 36 = 1260,
81/35 = 81 × 36/35 × 36 = 2916/1260
Subtract the two like fractions:
2205/1260 - 2916/1260 = 2205 - 2916/1260 = -711/1260
After reducing the fraction, the answer is -79/140

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