Add 12/40 and 5/6
12/40 + 5/6 is 17/15.
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,
12/40 = 12 × 3/40 × 3 = 36/120 - Likewise, for the 2nd fraction, since 6 × 20 = 120,
5/6 = 5 × 20/6 × 20 = 100/120 - Add the two like fractions:
36/120 + 100/120 = 36 + 100/120 = 136/120 - 136/120 simplified gives 17/15
- So, 12/40 + 5/6 = 17/15
In mixed form: 12/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40+5/6 12/40+10/6 12/80+5/6 12/40+5/12 36/40+5/6 12/40+15/6 12/40+5/18 60/40+5/6 12/40+25/6 12/40+5/30 84/40+5/6 12/40+35/6 12/40+5/42