Add 90/54 and 20/18
1st number: 1 36/54, 2nd number: 1 2/18
90/54 + 20/18 is 25/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
90/54 = 90 × 1/54 × 1 = 90/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
20/18 = 20 × 3/18 × 3 = 60/54 - Add the two like fractions:
90/54 + 60/54 = 90 + 60/54 = 150/54 - 150/54 simplified gives 25/9
- So, 90/54 + 20/18 = 25/9
In mixed form: 27/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+40/18 90/54+20/36 90/54+60/18 90/54+20/54 90/54+20/90