Subtract 63/42 from 45/48
1st number: 45/48, 2nd number: 1 21/42
45/48 - 63/42 is -9/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
45/48 = 45 × 7/48 × 7 = 315/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
63/42 = 63 × 8/42 × 8 = 504/336 - Subtract the two like fractions:
315/336 - 504/336 = 315 - 504/336 = -189/336 - After reducing the fraction, the answer is -9/16
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