Add 30/80 and 20/10
1st number: 30/80, 2nd number: 2 0/10
30/80 + 20/10 is 19/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
30/80 = 30 × 1/80 × 1 = 30/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
20/10 = 20 × 8/10 × 8 = 160/80 - Add the two like fractions:
30/80 + 160/80 = 30 + 160/80 = 190/80 - 190/80 simplified gives 19/8
- So, 30/80 + 20/10 = 19/8
In mixed form: 23/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/80+20/10 30/80+40/10 90/80+20/10 30/80+60/10 30/80+20/30 30/80+20/50 30/80+20/70