Add 8/12 and 20/40
8/12 + 20/40 is 7/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
8/12 = 8 × 10/12 × 10 = 80/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120 - Add the two like fractions:
80/120 + 60/120 = 80 + 60/120 = 140/120 - 140/120 simplified gives 7/6
- So, 8/12 + 20/40 = 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: 16/12+20/40 8/24+20/40 8/12+20/80 24/12+20/40 8/12+60/40 8/36+20/40 40/12+20/40 8/60+20/40 56/12+20/40 8/84+20/40