Add 28/40 and 25/36
28/40 + 25/36 is 251/180.
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,
25/36 = 25 × 10/36 × 10 = 250/360 - Add the two like fractions:
252/360 + 250/360 = 252 + 250/360 = 502/360 - 502/360 simplified gives 251/180
- So, 28/40 + 25/36 = 251/180
In mixed form: 171/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+25/36 28/40+50/36 28/80+25/36 28/40+25/72 84/40+25/36 28/40+75/36