Add 28/30 and 8/20
28/30 + 8/20 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
28/30 = 28 × 2/30 × 2 = 56/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
8/20 = 8 × 3/20 × 3 = 24/60 - Add the two like fractions:
56/60 + 24/60 = 56 + 24/60 = 80/60 - 80/60 simplified gives 4/3
- So, 28/30 + 8/20 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30+8/20 28/30+16/20 28/60+8/20 28/30+8/40 84/30+8/20 28/30+24/20 28/90+8/20 28/30+8/60 28/30+40/20 28/30+56/20