Subtract 42/75 from 12/70
12/70 - 42/75 is -68/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 70 × 15 = 1050,
12/70 = 12 × 15/70 × 15 = 180/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
42/75 = 42 × 14/75 × 14 = 588/1050 - Subtract the two like fractions:
180/1050 - 588/1050 = 180 - 588/1050 = -408/1050 - After reducing the fraction, the answer is -68/175
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