Subtract 81/56 from 40/12
1st number: 3 4/12, 2nd number: 1 25/56
40/12 - 81/56 is 317/168.
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,
40/12 = 40 × 14/12 × 14 = 560/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
81/56 = 81 × 3/56 × 3 = 243/168 - Subtract the two like fractions:
560/168 - 243/168 = 560 - 243/168 = 317/168 - In mixed form: 1149/168
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