Add 28/10 and 40/9
1st number: 2 8/10, 2nd number: 4 4/9
28/10 + 40/9 is 326/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 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 9 × 10 = 90,
40/9 = 40 × 10/9 × 10 = 400/90 - Add the two like fractions:
252/90 + 400/90 = 252 + 400/90 = 652/90 - 652/90 simplified gives 326/45
- So, 28/10 + 40/9 = 326/45
In mixed form: 711/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+40/9 28/10+80/9 28/20+40/9 28/10+40/18 84/10+40/9 28/30+40/9 28/10+40/27 28/50+40/9 28/10+40/45 28/70+40/9 28/10+40/63