Add 3/7 and 98/20
1st number: 3/7, 2nd number: 4 18/20
3/7 + 98/20 is 373/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
3/7 = 3 × 20/7 × 20 = 60/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
98/20 = 98 × 7/20 × 7 = 686/140 - Add the two like fractions:
60/140 + 686/140 = 60 + 686/140 = 746/140 - 746/140 simplified gives 373/70
- So, 3/7 + 98/20 = 373/70
In mixed form: 523/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/7+98/20 3/14+98/20 3/7+98/40 9/7+98/20 3/21+98/20 3/7+98/60 15/7+98/20 3/35+98/20 21/7+98/20 3/49+98/20