Subtract 15/40 from 12/14
12/14 - 15/40 is 27/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
12/14 = 12 × 20/14 × 20 = 240/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
15/40 = 15 × 7/40 × 7 = 105/280 - Subtract the two like fractions:
240/280 - 105/280 = 240 - 105/280 = 135/280 - After reducing the fraction, the answer is 27/56
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