Add 3/18 and 9/4
1st number: 3/18, 2nd number: 2 1/4
3/18 + 9/4 is 29/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
3/18 = 3 × 2/18 × 2 = 6/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
9/4 = 9 × 9/4 × 9 = 81/36 - Add the two like fractions:
6/36 + 81/36 = 6 + 81/36 = 87/36 - 87/36 simplified gives 29/12
- So, 3/18 + 9/4 = 29/12
In mixed form: 25/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18+9/4 3/18+18/4 3/36+9/4 3/18+9/8 9/18+9/4 3/18+27/4 3/54+9/4 3/18+9/12 15/18+9/4 3/18+45/4 3/90+9/4 3/18+9/20 21/18+9/4 3/18+63/4 3/18+9/28