Subtract 4/56 from 21/18
1st number: 1 3/18, 2nd number: 4/56
21/18 - 4/56 is 23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 18 × 28 = 504,
21/18 = 21 × 28/18 × 28 = 588/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
4/56 = 4 × 9/56 × 9 = 36/504 - Subtract the two like fractions:
588/504 - 36/504 = 588 - 36/504 = 552/504 - After reducing the fraction, the answer is 23/21
- In mixed form: 12/21
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