Subtract 45/42 from 7/98
1st number: 7/98, 2nd number: 1 3/42
7/98 - 45/42 is -1/1.
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,
7/98 = 7 × 3/98 × 3 = 21/294 - Likewise, for the 2nd fraction, since 42 × 7 = 294,
45/42 = 45 × 7/42 × 7 = 315/294 - Subtract the two like fractions:
21/294 - 315/294 = 21 - 315/294 = -294/294 - After reducing the fraction, the answer is -1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/98-45/42 7/98-90/42 7/98-45/84 21/98-45/42 35/98-45/42 49/98-45/42