Subtract 81/28 from 14/42
1st number: 14/42, 2nd number: 2 25/28
14/42 - 81/28 is -215/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
14/42 = 14 × 2/42 × 2 = 28/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
81/28 = 81 × 3/28 × 3 = 243/84 - Subtract the two like fractions:
28/84 - 243/84 = 28 - 243/84 = -215/84
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