Add 28/10 and 40/5
1st number: 2 8/10, 2nd number: 8 0/5
28/10 + 40/5 is 54/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 10 × 1 = 10,
28/10 = 28 × 1/10 × 1 = 28/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
40/5 = 40 × 2/5 × 2 = 80/10 - Add the two like fractions:
28/10 + 80/10 = 28 + 80/10 = 108/10 - 108/10 simplified gives 54/5
- So, 28/10 + 40/5 = 54/5
In mixed form: 104/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+40/5 28/10+80/5 28/20+40/5 28/10+40/10 84/10+40/5 28/30+40/5 28/10+40/15 28/50+40/5 28/10+40/25 28/70+40/5 28/10+40/35