Add 8/20 and 12/30
8/20 + 12/30 is 4/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
8/20 = 8 × 3/20 × 3 = 24/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
12/30 = 12 × 2/30 × 2 = 24/60 - Add the two like fractions:
24/60 + 24/60 = 24 + 24/60 = 48/60 - 48/60 simplified gives 4/5
- So, 8/20 + 12/30 = 4/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20+12/30 8/20+24/30 8/40+12/30 8/20+12/60 24/20+12/30 8/20+36/30 8/60+12/30 8/20+12/90 40/20+12/30 8/20+60/30 56/20+12/30 8/20+84/30