Add 98/20 and 14/21
1st number: 4 18/20, 2nd number: 14/21
98/20 + 14/21 is 167/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
98/20 = 98 × 21/20 × 21 = 2058/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
14/21 = 14 × 20/21 × 20 = 280/420 - Add the two like fractions:
2058/420 + 280/420 = 2058 + 280/420 = 2338/420 - 2338/420 simplified gives 167/30
- So, 98/20 + 14/21 = 167/30
In mixed form: 517/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20+28/21 98/40+14/21 98/20+14/42 98/20+42/21 98/60+14/21 98/20+14/63 98/20+70/21 98/20+98/21