Add 3/9 and 45/90
3/9 + 45/90 is 5/6.
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,
3/9 = 3 × 10/9 × 10 = 30/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
45/90 = 45 × 1/90 × 1 = 45/90 - Add the two like fractions:
30/90 + 45/90 = 30 + 45/90 = 75/90 - 75/90 simplified gives 5/6
- So, 3/9 + 45/90 = 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9+45/90 3/18+45/90 3/27+45/90 15/9+45/90 3/45+45/90 21/9+45/90 3/63+45/90