Add 25/40 and 4/9
25/40 + 4/9 is 77/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
25/40 = 25 × 9/40 × 9 = 225/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
4/9 = 4 × 40/9 × 40 = 160/360 - Add the two like fractions:
225/360 + 160/360 = 225 + 160/360 = 385/360 - 385/360 simplified gives 77/72
- So, 25/40 + 4/9 = 77/72
In mixed form: 15/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/40+4/9 25/40+8/9 25/80+4/9 25/40+4/18 75/40+4/9 25/40+12/9 25/40+4/27 25/40+20/9 25/40+4/45 25/40+28/9 25/40+4/63