Subtract 15/98 from 7/42
7/42 - 15/98 is 2/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
7/42 = 7 × 7/42 × 7 = 49/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
15/98 = 15 × 3/98 × 3 = 45/294 - Subtract the two like fractions:
49/294 - 45/294 = 49 - 45/294 = 4/294 - After reducing the fraction, the answer is 2/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42-15/98 7/42-30/98 7/84-15/98 21/42-15/98 7/42-45/98 35/42-15/98 7/42-75/98 49/42-15/98