Add 27/45 and 90/18
1st number: 27/45, 2nd number: 5 0/18
27/45 + 90/18 is 28/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
27/45 = 27 × 2/45 × 2 = 54/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
90/18 = 90 × 5/18 × 5 = 450/90 - Add the two like fractions:
54/90 + 450/90 = 54 + 450/90 = 504/90 - 504/90 simplified gives 28/5
- So, 27/45 + 90/18 = 28/5
In mixed form: 53/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45+90/18 27/90+90/18 27/45+90/36 81/45+90/18 27/45+90/54