Subtract 21/42 from 5/98
5/98 - 21/42 is -22/49.
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,
5/98 = 5 × 3/98 × 3 = 15/294 - Likewise, for the 2nd fraction, since 42 × 7 = 294,
21/42 = 21 × 7/42 × 7 = 147/294 - Subtract the two like fractions:
15/294 - 147/294 = 15 - 147/294 = -132/294 - After reducing the fraction, the answer is -22/49
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