Add 80/8 and 30/20
1st number: 10 0/8, 2nd number: 1 10/20
80/8 + 30/20 is 23/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
80/8 = 80 × 5/8 × 5 = 400/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
30/20 = 30 × 2/20 × 2 = 60/40 - Add the two like fractions:
400/40 + 60/40 = 400 + 60/40 = 460/40 - 460/40 simplified gives 23/2
- So, 80/8 + 30/20 = 23/2
In mixed form: 111/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+60/20 80/16+30/20 80/8+30/40 80/8+90/20 80/24+30/20 80/8+30/60 80/40+30/20 80/56+30/20