Subtract 7/21 from 7/48
7/48 - 7/21 is -3/16.
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,
7/48 = 7 × 7/48 × 7 = 49/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
7/21 = 7 × 16/21 × 16 = 112/336 - Subtract the two like fractions:
49/336 - 112/336 = 49 - 112/336 = -63/336 - After reducing the fraction, the answer is -3/16
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