Subtract 7/98 from 21/5
1st number: 4 1/5, 2nd number: 7/98
21/5 - 7/98 is 289/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 5 × 98 = 490,
21/5 = 21 × 98/5 × 98 = 2058/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
7/98 = 7 × 5/98 × 5 = 35/490 - Subtract the two like fractions:
2058/490 - 35/490 = 2058 - 35/490 = 2023/490 - After reducing the fraction, the answer is 289/70
- In mixed form: 49/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5-7/98 21/5-14/98 21/10-7/98 63/5-7/98 21/5-21/98 21/15-7/98 21/5-35/98 21/25-7/98 21/5-49/98 21/35-7/98