Add 20/30 and 4/8
20/30 + 4/8 is 7/6.
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,
4/8 = 4 × 15/8 × 15 = 60/120 - Add the two like fractions:
80/120 + 60/120 = 80 + 60/120 = 140/120 - 140/120 simplified gives 7/6
- So, 20/30 + 4/8 = 7/6
In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30+4/8 20/60+4/8 20/30+4/16 60/30+4/8 20/30+12/8 20/90+4/8 20/30+4/24 20/30+20/8 20/30+4/40 20/30+28/8 20/30+4/56