Subtract 4/56 from 75/21
1st number: 3 12/21, 2nd number: 4/56
75/21 - 4/56 is 7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
75/21 = 75 × 8/21 × 8 = 600/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
4/56 = 4 × 3/56 × 3 = 12/168 - Subtract the two like fractions:
600/168 - 12/168 = 600 - 12/168 = 588/168 - After reducing the fraction, the answer is 7/2
- In mixed form: 31/2
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