Add 45/15 and 9/30
1st number: 3 0/15, 2nd number: 9/30
45/15 + 9/30 is 33/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
45/15 = 45 × 2/15 × 2 = 90/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
9/30 = 9 × 1/30 × 1 = 9/30 - Add the two like fractions:
90/30 + 9/30 = 90 + 9/30 = 99/30 - 99/30 simplified gives 33/10
- So, 45/15 + 9/30 = 33/10
In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+9/30 45/15+18/30 45/30+9/30 45/15+9/60 45/15+27/30 45/15+9/90 45/15+45/30 45/75+9/30 45/15+63/30