Add 72/18 and 12/36
1st number: 4 0/18, 2nd number: 12/36
72/18 + 12/36 is 13/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
72/18 = 72 × 2/18 × 2 = 144/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
12/36 = 12 × 1/36 × 1 = 12/36 - Add the two like fractions:
144/36 + 12/36 = 144 + 12/36 = 156/36 - 156/36 simplified gives 13/3
- So, 72/18 + 12/36 = 13/3
In mixed form: 41/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+24/36 72/36+12/36 72/18+12/72 72/54+12/36 72/18+60/36 72/90+12/36 72/18+84/36