Subtract 42/70 from 8/36
8/36 - 42/70 is -17/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 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 70 × 18 = 1260,
42/70 = 42 × 18/70 × 18 = 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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