Add 15/9 and 54/90
1st number: 1 6/9, 2nd number: 54/90
15/9 + 54/90 is 34/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
15/9 = 15 × 10/9 × 10 = 150/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
54/90 = 54 × 1/90 × 1 = 54/90 - Add the two like fractions:
150/90 + 54/90 = 150 + 54/90 = 204/90 - 204/90 simplified gives 34/15
- So, 15/9 + 54/90 = 34/15
In mixed form: 24/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+54/90 15/18+54/90 45/9+54/90 15/27+54/90 75/9+54/90 15/45+54/90 15/63+54/90