Add 12/40 and 72/24
1st number: 12/40, 2nd number: 3 0/24
12/40 + 72/24 is 33/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 24 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 24 × 5 = 120,
72/24 = 72 × 5/24 × 5 = 360/120 - Add the two like fractions:
36/120 + 360/120 = 36 + 360/120 = 396/120 - 396/120 simplified gives 33/10
- So, 12/40 + 72/24 = 33/10
In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40+72/24 12/80+72/24 12/40+72/48 36/40+72/24 60/40+72/24 84/40+72/24