Add 18/15 and 90/5
1st number: 1 3/15, 2nd number: 18 0/5
18/15 + 90/5 is 96/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
18/15 = 18 × 1/15 × 1 = 18/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
90/5 = 90 × 3/5 × 3 = 270/15 - Add the two like fractions:
18/15 + 270/15 = 18 + 270/15 = 288/15 - 288/15 simplified gives 96/5
- So, 18/15 + 90/5 = 96/5
In mixed form: 191/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+90/5 18/30+90/5 18/15+90/10 54/15+90/5 18/45+90/5 18/15+90/15 90/15+90/5 18/75+90/5 18/15+90/25 18/15+90/35