Add 21/20 and 98/10
1st number: 1 1/20, 2nd number: 9 8/10
21/20 + 98/10 is 217/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
21/20 = 21 × 1/20 × 1 = 21/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
98/10 = 98 × 2/10 × 2 = 196/20 - Add the two like fractions:
21/20 + 196/20 = 21 + 196/20 = 217/20 - So, 21/20 + 98/10 = 217/20
In mixed form: 1017/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/20+98/10 21/40+98/10 21/20+98/20 63/20+98/10 21/60+98/10 21/20+98/30 21/20+98/50 21/20+98/70