Add 9/18 and 27/30
9/18 + 27/30 is 7/5.
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,
9/18 = 9 × 5/18 × 5 = 45/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
27/30 = 27 × 3/30 × 3 = 81/90 - Add the two like fractions:
45/90 + 81/90 = 45 + 81/90 = 126/90 - 126/90 simplified gives 7/5
- So, 9/18 + 27/30 = 7/5
In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18+54/30 9/36+27/30 9/18+27/60 27/18+27/30 9/18+81/30 9/54+27/30 9/18+27/90 45/18+27/30 9/90+27/30 63/18+27/30