Subtract 42/48 from 28/21
1st number: 1 7/21, 2nd number: 42/48
28/21 - 42/48 is 11/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
28/21 = 28 × 16/21 × 16 = 448/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336 - Subtract the two like fractions:
448/336 - 294/336 = 448 - 294/336 = 154/336 - After reducing the fraction, the answer is 11/24
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