Add 28/18 and 6/90
1st number: 1 10/18, 2nd number: 6/90
28/18 + 6/90 is 73/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
28/18 = 28 × 5/18 × 5 = 140/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
6/90 = 6 × 1/90 × 1 = 6/90 - Add the two like fractions:
140/90 + 6/90 = 140 + 6/90 = 146/90 - 146/90 simplified gives 73/45
- So, 28/18 + 6/90 = 73/45
In mixed form: 128/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18+6/90 28/18+12/90 28/36+6/90 84/18+6/90 28/18+18/90 28/54+6/90 28/18+30/90 28/90+6/90 28/18+42/90