Subtract 28/42 from 56/98
56/98 - 28/42 is -2/21.
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,
56/98 = 56 × 3/98 × 3 = 168/294 - Likewise, for the 2nd fraction, since 42 × 7 = 294,
28/42 = 28 × 7/42 × 7 = 196/294 - Subtract the two like fractions:
168/294 - 196/294 = 168 - 196/294 = -28/294 - After reducing the fraction, the answer is -2/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/98-56/42 56/98-28/84 56/98-84/42