Subtract 18/56 from 12/60
12/60 - 18/56 is -17/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 60 × 14 = 840,
12/60 = 12 × 14/60 × 14 = 168/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
18/56 = 18 × 15/56 × 15 = 270/840 - Subtract the two like fractions:
168/840 - 270/840 = 168 - 270/840 = -102/840 - After reducing the fraction, the answer is -17/140
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