Add 12/60 and 15/40
12/60 + 15/40 is 23/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
12/60 = 12 × 2/60 × 2 = 24/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Add the two like fractions:
24/120 + 45/120 = 24 + 45/120 = 69/120 - 69/120 simplified gives 23/40
- So, 12/60 + 15/40 = 23/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/60+15/40 12/60+30/40 12/60+15/80 36/60+15/40 12/60+45/40 12/60+75/40 84/60+15/40