Subtract 84/63 from 40/48
1st number: 40/48, 2nd number: 1 21/63
40/48 - 84/63 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 63 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 48 × 21 = 1008,
40/48 = 40 × 21/48 × 21 = 840/1008 - Likewise, for the 2nd fraction, since 63 × 16 = 1008,
84/63 = 84 × 16/63 × 16 = 1344/1008 - Subtract the two like fractions:
840/1008 - 1344/1008 = 840 - 1344/1008 = -504/1008 - After reducing the fraction, the answer is -1/2
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