Add 54/9 and 90/18
1st number: 6 0/9, 2nd number: 5 0/18
54/9 + 90/18 is 11/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
54/9 = 54 × 2/9 × 2 = 108/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
90/18 = 90 × 1/18 × 1 = 90/18 - Add the two like fractions:
108/18 + 90/18 = 108 + 90/18 = 198/18 - 198/18 simplified gives 11/1
- So, 54/9 + 90/18 = 11/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+90/18 54/9+90/36 54/27+90/18 54/9+90/54 54/45+90/18 54/63+90/18