Add 3/5 and 28/40
3/5 + 28/40 is 13/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
3/5 = 3 × 8/5 × 8 = 24/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Add the two like fractions:
24/40 + 28/40 = 24 + 28/40 = 52/40 - 52/40 simplified gives 13/10
- So, 3/5 + 28/40 = 13/10
In mixed form: 13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5+28/40 3/5+56/40 3/10+28/40 3/5+28/80 9/5+28/40 3/5+84/40 3/15+28/40 15/5+28/40 3/25+28/40 21/5+28/40 3/35+28/40