Subtract 7/42 from 12/98
12/98 - 7/42 is -13/294.
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,
7/42 = 7 × 7/42 × 7 = 49/294 - Subtract the two like fractions:
36/294 - 49/294 = 36 - 49/294 = -13/294
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/98-7/42 12/98-14/42 12/98-7/84 36/98-7/42 12/98-21/42 60/98-7/42 12/98-35/42 84/98-7/42 12/98-49/42