Subtract 27/75 from 20/70
20/70 - 27/75 is -13/175.
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,
20/70 = 20 × 15/70 × 15 = 300/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
27/75 = 27 × 14/75 × 14 = 378/1050 - Subtract the two like fractions:
300/1050 - 378/1050 = 300 - 378/1050 = -78/1050 - After reducing the fraction, the answer is -13/175
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