Add 28/40 and 18/36
28/40 + 18/36 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
28/40 = 28 × 9/40 × 9 = 252/360 - Likewise, for the 2nd fraction, since 36 × 10 = 360,
18/36 = 18 × 10/36 × 10 = 180/360 - Add the two like fractions:
252/360 + 180/360 = 252 + 180/360 = 432/360 - 432/360 simplified gives 6/5
- So, 28/40 + 18/36 = 6/5
In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+18/36 28/80+18/36 28/40+18/72 84/40+18/36 28/40+54/36 28/40+90/36