Add 28/20 and 98/35
1st number: 1 8/20, 2nd number: 2 28/35
28/20 + 98/35 is 21/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
28/20 = 28 × 7/20 × 7 = 196/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
98/35 = 98 × 4/35 × 4 = 392/140 - Add the two like fractions:
196/140 + 392/140 = 196 + 392/140 = 588/140 - 588/140 simplified gives 21/5
- So, 28/20 + 98/35 = 21/5
In mixed form: 41/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20+98/35 28/40+98/35 28/20+98/70 84/20+98/35 28/60+98/35