Subtract 42/56 from 72/12
1st number: 6 0/12, 2nd number: 42/56
72/12 - 42/56 is 21/4.
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,
42/56 = 42 × 3/56 × 3 = 126/168 - Subtract the two like fractions:
1008/168 - 126/168 = 1008 - 126/168 = 882/168 - After reducing the fraction, the answer is 21/4
- In mixed form: 51/4
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