Add 24/40 and 20/12
1st number: 24/40, 2nd number: 1 8/12
24/40 + 20/12 is 34/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
24/40 = 24 × 3/40 × 3 = 72/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
20/12 = 20 × 10/12 × 10 = 200/120 - Add the two like fractions:
72/120 + 200/120 = 72 + 200/120 = 272/120 - 272/120 simplified gives 34/15
- So, 24/40 + 20/12 = 34/15
In mixed form: 24/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/40+20/12 24/40+40/12 24/80+20/12 24/40+20/24 72/40+20/12 24/40+60/12 24/40+20/36 24/40+20/60 24/40+20/84