Subtract 15/42 from 12/98
12/98 - 15/42 is -23/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 42 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 98 × 3 = 294,
12/98 = 12 × 3/98 × 3 = 36/294 - Likewise, for the 2nd fraction, since 42 × 7 = 294,
15/42 = 15 × 7/42 × 7 = 105/294 - Subtract the two like fractions:
36/294 - 105/294 = 36 - 105/294 = -69/294 - After reducing the fraction, the answer is -23/98
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