Add 12/18 and 3/30
12/18 + 3/30 is 23/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
12/18 = 12 × 5/18 × 5 = 60/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
3/30 = 3 × 3/30 × 3 = 9/90 - Add the two like fractions:
60/90 + 9/90 = 60 + 9/90 = 69/90 - 69/90 simplified gives 23/30
- So, 12/18 + 3/30 = 23/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18+3/30 12/18+6/30 12/36+3/30 12/18+3/60 36/18+3/30 12/18+9/30 12/54+3/30 12/18+3/90 60/18+3/30 12/18+15/30 12/90+3/30 84/18+3/30 12/18+21/30