Add 35/50 and 28/80
35/50 + 28/80 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 50 × 8 = 400,
35/50 = 35 × 8/50 × 8 = 280/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
28/80 = 28 × 5/80 × 5 = 140/400 - Add the two like fractions:
280/400 + 140/400 = 280 + 140/400 = 420/400 - 420/400 simplified gives 21/20
- So, 35/50 + 28/80 = 21/20
In mixed form: 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/50+28/80 35/50+56/80 35/50+84/80