Add 28/35 and 80/20
1st number: 28/35, 2nd number: 4 0/20
28/35 + 80/20 is 24/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
28/35 = 28 × 4/35 × 4 = 112/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
80/20 = 80 × 7/20 × 7 = 560/140 - Add the two like fractions:
112/140 + 560/140 = 112 + 560/140 = 672/140 - 672/140 simplified gives 24/5
- So, 28/35 + 80/20 = 24/5
In mixed form: 44/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35+80/20 28/70+80/20 28/35+80/40 84/35+80/20 28/35+80/60