Add 72/18 and 12/24
1st number: 4 0/18, 2nd number: 12/24
72/18 + 12/24 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
72/18 = 72 × 4/18 × 4 = 288/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
12/24 = 12 × 3/24 × 3 = 36/72 - Add the two like fractions:
288/72 + 36/72 = 288 + 36/72 = 324/72 - 324/72 simplified gives 9/2
- So, 72/18 + 12/24 = 9/2
In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/36+12/24 72/18+12/48 72/18+36/24 72/54+12/24 72/18+12/72 72/18+60/24 72/90+12/24 72/18+84/24