Add 28/36 and 25/40
28/36 + 25/40 is 101/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 36 × 10 = 360,
28/36 = 28 × 10/36 × 10 = 280/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
25/40 = 25 × 9/40 × 9 = 225/360 - Add the two like fractions:
280/360 + 225/360 = 280 + 225/360 = 505/360 - 505/360 simplified gives 101/72
- So, 28/36 + 25/40 = 101/72
In mixed form: 129/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/36+25/40 28/36+50/40 28/72+25/40 28/36+25/80 84/36+25/40 28/36+75/40