Add 72/18 and 72/12
1st number: 4 0/18, 2nd number: 6 0/12
72/18 + 72/12 is 10/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 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 12 × 3 = 36,
72/12 = 72 × 3/12 × 3 = 216/36 - Add the two like fractions:
144/36 + 216/36 = 144 + 216/36 = 360/36 - 360/36 simplified gives 10/1
- So, 72/18 + 72/12 = 10/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/36+72/12 72/18+72/24 72/54+72/12 72/18+72/36 72/90+72/12 72/18+72/60 72/18+72/84