Add 9/30 and 18/15
1st number: 9/30, 2nd number: 1 3/15
9/30 + 18/15 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
9/30 = 9 × 1/30 × 1 = 9/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
18/15 = 18 × 2/15 × 2 = 36/30 - Add the two like fractions:
9/30 + 36/30 = 9 + 36/30 = 45/30 - 45/30 simplified gives 3/2
- So, 9/30 + 18/15 = 3/2
In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+18/15 9/30+36/15 9/60+18/15 9/30+18/30 27/30+18/15 9/30+54/15 9/90+18/15 9/30+18/45 45/30+18/15 9/30+90/15 9/30+18/75 63/30+18/15