Subtract 21/56 from 72/12
1st number: 6 0/12, 2nd number: 21/56
72/12 - 21/56 is 45/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
72/12 = 72 × 14/12 × 14 = 1008/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
21/56 = 21 × 3/56 × 3 = 63/168 - Subtract the two like fractions:
1008/168 - 63/168 = 1008 - 63/168 = 945/168 - After reducing the fraction, the answer is 45/8
- In mixed form: 55/8
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