Add 28/40 and 4/10
28/40 + 4/10 is 11/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
4/10 = 4 × 4/10 × 4 = 16/40 - Add the two like fractions:
28/40 + 16/40 = 28 + 16/40 = 44/40 - 44/40 simplified gives 11/10
- So, 28/40 + 4/10 = 11/10
In mixed form: 11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+4/10 28/40+8/10 28/80+4/10 28/40+4/20 84/40+4/10 28/40+12/10 28/40+4/30 28/40+20/10 28/40+4/50 28/40+28/10 28/40+4/70