Subtract 21/56 from 1/28
1/28 - 21/56 is -19/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
1/28 = 1 × 2/28 × 2 = 2/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Subtract the two like fractions:
2/56 - 21/56 = 2 - 21/56 = -19/56
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