Subtract 21/35 from 8/36, Solve 8/36

Subtract 21/35 from 8/36

8/36 - 21/35 is -17/45.

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,
8/36 = 8 × 35/36 × 35 = 280/1260
Likewise, for the 2nd fraction, since 35 × 36 = 1260,
21/35 = 21 × 36/35 × 36 = 756/1260
Subtract the two like fractions:
280/1260 - 756/1260 = 280 - 756/1260 = -476/1260
After reducing the fraction, the answer is -17/45

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