Subtract 4/49 from 81/42
1st number: 1 39/42, 2nd number: 4/49
81/42 - 4/49 is 181/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
81/42 = 81 × 7/42 × 7 = 567/294 - Likewise, for the 2nd fraction, since 49 × 6 = 294,
4/49 = 4 × 6/49 × 6 = 24/294 - Subtract the two like fractions:
567/294 - 24/294 = 567 - 24/294 = 543/294 - After reducing the fraction, the answer is 181/98
- In mixed form: 183/98
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