Subtract 12/18 from 4/15
4/15 - 12/18 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
4/15 = 4 × 6/15 × 6 = 24/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
12/18 = 12 × 5/18 × 5 = 60/90 - Subtract the two like fractions:
24/90 - 60/90 = 24 - 60/90 = -36/90 - After reducing the fraction, the answer is -2/5
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