Subtract 45/60 from 63/90
63/90 - 45/60 is -1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
63/90 = 63 × 2/90 × 2 = 126/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
45/60 = 45 × 3/60 × 3 = 135/180 - Subtract the two like fractions:
126/180 - 135/180 = 126 - 135/180 = -9/180 - After reducing the fraction, the answer is -1/20
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