Subtract 40/63 from 8/16
8/16 - 40/63 is -17/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 63 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 16 × 63 = 1008,
8/16 = 8 × 63/16 × 63 = 504/1008 - Likewise, for the 2nd fraction, since 63 × 16 = 1008,
40/63 = 40 × 16/63 × 16 = 640/1008 - Subtract the two like fractions:
504/1008 - 640/1008 = 504 - 640/1008 = -136/1008 - After reducing the fraction, the answer is -17/126
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