Subtract 27/60 from 12/70
12/70 - 27/60 is -39/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
12/70 = 12 × 6/70 × 6 = 72/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
27/60 = 27 × 7/60 × 7 = 189/420 - Subtract the two like fractions:
72/420 - 189/420 = 72 - 189/420 = -117/420 - After reducing the fraction, the answer is -39/140
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