Add 30/40 and 20/6
1st number: 30/40, 2nd number: 3 2/6
30/40 + 20/6 is 49/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 6 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Likewise, for the 2nd fraction, since 6 × 20 = 120,
20/6 = 20 × 20/6 × 20 = 400/120 - Add the two like fractions:
90/120 + 400/120 = 90 + 400/120 = 490/120 - 490/120 simplified gives 49/12
- So, 30/40 + 20/6 = 49/12
In mixed form: 41/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+20/6 30/40+40/6 30/80+20/6 30/40+20/12 90/40+20/6 30/40+60/6 30/40+20/18 30/40+20/30 30/40+20/42