Subtract 60/90 from 18/56
18/56 - 60/90 is -29/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
18/56 = 18 × 45/56 × 45 = 810/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
60/90 = 60 × 28/90 × 28 = 1680/2520 - Subtract the two like fractions:
810/2520 - 1680/2520 = 810 - 1680/2520 = -870/2520 - After reducing the fraction, the answer is -29/84
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