Add 45/90 and 28/10
1st number: 45/90, 2nd number: 2 8/10
45/90 + 28/10 is 33/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
45/90 = 45 × 1/90 × 1 = 45/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
28/10 = 28 × 9/10 × 9 = 252/90 - Add the two like fractions:
45/90 + 252/90 = 45 + 252/90 = 297/90 - 297/90 simplified gives 33/10
- So, 45/90 + 28/10 = 33/10
In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 45/90+56/10 45/90+28/20 45/90+84/10 45/90+28/30 45/90+28/50 45/90+28/70