Subtract 10/21 from 18/48
18/48 - 10/21 is -17/168.
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,
10/21 = 10 × 16/21 × 16 = 160/336 - Subtract the two like fractions:
126/336 - 160/336 = 126 - 160/336 = -34/336 - After reducing the fraction, the answer is -17/168
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