Add 18/90 and 36/27
1st number: 18/90, 2nd number: 1 9/27
18/90 + 36/27 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
18/90 = 18 × 3/90 × 3 = 54/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
36/27 = 36 × 10/27 × 10 = 360/270 - Add the two like fractions:
54/270 + 360/270 = 54 + 360/270 = 414/270 - 414/270 simplified gives 23/15
- So, 18/90 + 36/27 = 23/15
In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/90+36/27 18/90+72/27 18/90+36/54 54/90+36/27 18/90+36/81