Subtract 21/36 from 8/70
8/70 - 21/36 is -197/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
8/70 = 8 × 18/70 × 18 = 144/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
21/36 = 21 × 35/36 × 35 = 735/1260 - Subtract the two like fractions:
144/1260 - 735/1260 = 144 - 735/1260 = -591/1260 - After reducing the fraction, the answer is -197/420
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