Subtract 45/56 from 20/60
20/60 - 45/56 is -79/168.
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,
20/60 = 20 × 14/60 × 14 = 280/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
45/56 = 45 × 15/56 × 15 = 675/840 - Subtract the two like fractions:
280/840 - 675/840 = 280 - 675/840 = -395/840 - After reducing the fraction, the answer is -79/168
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