Add 28/20 and 36/30
1st number: 1 8/20, 2nd number: 1 6/30
28/20 + 36/30 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
28/20 = 28 × 3/20 × 3 = 84/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
36/30 = 36 × 2/30 × 2 = 72/60 - Add the two like fractions:
84/60 + 72/60 = 84 + 72/60 = 156/60 - 156/60 simplified gives 13/5
- So, 28/20 + 36/30 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20+36/30 28/20+72/30 28/40+36/30 28/20+36/60 84/20+36/30 28/60+36/30 28/20+36/90