Subtract 21/40 from 54/28
1st number: 1 26/28, 2nd number: 21/40
54/28 - 21/40 is 393/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
54/28 = 54 × 10/28 × 10 = 540/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
21/40 = 21 × 7/40 × 7 = 147/280 - Subtract the two like fractions:
540/280 - 147/280 = 540 - 147/280 = 393/280 - In mixed form: 1113/280
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