Subtract 63/21 from 18/48
1st number: 18/48, 2nd number: 3 0/21
18/48 - 63/21 is -21/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
18/48 = 18 × 7/48 × 7 = 126/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
63/21 = 63 × 16/21 × 16 = 1008/336 - Subtract the two like fractions:
126/336 - 1008/336 = 126 - 1008/336 = -882/336 - After reducing the fraction, the answer is -21/8
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