Add 90/27 and 3/18
1st number: 3 9/27, 2nd number: 3/18
90/27 + 3/18 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
90/27 = 90 × 2/27 × 2 = 180/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
3/18 = 3 × 3/18 × 3 = 9/54 - Add the two like fractions:
180/54 + 9/54 = 180 + 9/54 = 189/54 - 189/54 simplified gives 7/2
- So, 90/27 + 3/18 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27+6/18 90/54+3/18 90/27+3/36 90/27+9/18 90/81+3/18 90/27+3/54 90/27+15/18 90/27+3/90 90/27+21/18