Subtract 80/70 from 42/75
1st number: 42/75, 2nd number: 1 10/70
42/75 - 80/70 is -102/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
42/75 = 42 × 14/75 × 14 = 588/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
80/70 = 80 × 15/70 × 15 = 1200/1050 - Subtract the two like fractions:
588/1050 - 1200/1050 = 588 - 1200/1050 = -612/1050 - After reducing the fraction, the answer is -102/175
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