Add 1/3 and 28/40
1/3 + 28/40 is 31/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
1/3 = 1 × 40/3 × 40 = 40/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
28/40 = 28 × 3/40 × 3 = 84/120 - Add the two like fractions:
40/120 + 84/120 = 40 + 84/120 = 124/120 - 124/120 simplified gives 31/30
- So, 1/3 + 28/40 = 31/30
In mixed form: 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3+28/40 1/3+56/40 1/6+28/40 1/3+28/80 1/3+84/40 1/9+28/40 5/3+28/40 1/15+28/40 7/3+28/40 1/21+28/40