Subtract 18/56 from 21/6
1st number: 3 3/6, 2nd number: 18/56
21/6 - 18/56 is 89/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 6 × 28 = 168,
21/6 = 21 × 28/6 × 28 = 588/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
18/56 = 18 × 3/56 × 3 = 54/168 - Subtract the two like fractions:
588/168 - 54/168 = 588 - 54/168 = 534/168 - After reducing the fraction, the answer is 89/28
- In mixed form: 35/28
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