Add 80/50 and 28/40
1st number: 1 30/50, 2nd number: 28/40
80/50 + 28/40 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
80/50 = 80 × 4/50 × 4 = 320/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
28/40 = 28 × 5/40 × 5 = 140/200 - Add the two like fractions:
320/200 + 140/200 = 320 + 140/200 = 460/200 - 460/200 simplified gives 23/10
- So, 80/50 + 28/40 = 23/10
In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/50+56/40 80/50+28/80 80/50+84/40