Subtract 21/48 from 1/28
1/28 - 21/48 is -45/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 28 × 12 = 336,
1/28 = 1 × 12/28 × 12 = 12/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Subtract the two like fractions:
12/336 - 147/336 = 12 - 147/336 = -135/336 - After reducing the fraction, the answer is -45/112
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