Add 40/72 and 25/50
40/72 + 25/50 is 19/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 50 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
40/72 = 40 × 25/72 × 25 = 1000/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
25/50 = 25 × 36/50 × 36 = 900/1800 - Add the two like fractions:
1000/1800 + 900/1800 = 1000 + 900/1800 = 1900/1800 - 1900/1800 simplified gives 19/18
- So, 40/72 + 25/50 = 19/18
In mixed form: 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/72+25/50 40/72+75/50