Subtract 28/8 from 7/98
1st number: 7/98, 2nd number: 3 4/8
7/98 - 28/8 is -24/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 98 × 4 = 392,
7/98 = 7 × 4/98 × 4 = 28/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
28/8 = 28 × 49/8 × 49 = 1372/392 - Subtract the two like fractions:
28/392 - 1372/392 = 28 - 1372/392 = -1344/392 - After reducing the fraction, the answer is -24/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/98-28/8 7/98-56/8 7/98-28/16 21/98-28/8 7/98-84/8 7/98-28/24 35/98-28/8 7/98-28/40 49/98-28/8 7/98-28/56