Add 20/30 and 10/8
1st number: 20/30, 2nd number: 1 2/8
20/30 + 10/8 is 23/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
20/30 = 20 × 4/30 × 4 = 80/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
10/8 = 10 × 15/8 × 15 = 150/120 - Add the two like fractions:
80/120 + 150/120 = 80 + 150/120 = 230/120 - 230/120 simplified gives 23/12
- So, 20/30 + 10/8 = 23/12
In mixed form: 111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30+10/8 20/30+20/8 20/60+10/8 20/30+10/16 60/30+10/8 20/30+30/8 20/90+10/8 20/30+10/24 20/30+50/8 20/30+10/40 20/30+70/8 20/30+10/56