Add 28/10 and 18/90
1st number: 2 8/10, 2nd number: 18/90
28/10 + 18/90 is 3/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
28/10 = 28 × 9/10 × 9 = 252/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
18/90 = 18 × 1/90 × 1 = 18/90 - Add the two like fractions:
252/90 + 18/90 = 252 + 18/90 = 270/90 - 270/90 simplified gives 3/1
- So, 28/10 + 18/90 = 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+18/90 28/10+36/90 28/20+18/90 84/10+18/90 28/10+54/90 28/30+18/90 28/50+18/90 28/70+18/90