Add 54/90 and 84/9
1st number: 54/90, 2nd number: 9 3/9
54/90 + 84/9 is 149/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
54/90 = 54 × 1/90 × 1 = 54/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
84/9 = 84 × 10/9 × 10 = 840/90 - Add the two like fractions:
54/90 + 840/90 = 54 + 840/90 = 894/90 - 894/90 simplified gives 149/15
- So, 54/90 + 84/9 = 149/15
In mixed form: 914/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/90+84/18 54/90+84/27 54/90+84/45 54/90+84/63