Subtract 12/70 from 4/40
4/40 - 12/70 is -1/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
4/40 = 4 × 7/40 × 7 = 28/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
12/70 = 12 × 4/70 × 4 = 48/280 - Subtract the two like fractions:
28/280 - 48/280 = 28 - 48/280 = -20/280 - After reducing the fraction, the answer is -1/14
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