Add 40/8 and 28/40
1st number: 5 0/8, 2nd number: 28/40
40/8 + 28/40 is 57/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
40/8 = 40 × 5/8 × 5 = 200/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Add the two like fractions:
200/40 + 28/40 = 200 + 28/40 = 228/40 - 228/40 simplified gives 57/10
- So, 40/8 + 28/40 = 57/10
In mixed form: 57/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+28/40 40/8+56/40 40/16+28/40 40/8+28/80 40/8+84/40 40/24+28/40 40/56+28/40