Subtract 3/56 from 84/21
1st number: 4 0/21, 2nd number: 3/56
84/21 - 3/56 is 221/56.
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,
84/21 = 84 × 8/21 × 8 = 672/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
3/56 = 3 × 3/56 × 3 = 9/168 - Subtract the two like fractions:
672/168 - 9/168 = 672 - 9/168 = 663/168 - After reducing the fraction, the answer is 221/56
- In mixed form: 353/56
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