Add 72/9 and 2/5
1st number: 8 0/9, 2nd number: 2/5
72/9 + 2/5 is 42/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
72/9 = 72 × 5/9 × 5 = 360/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
2/5 = 2 × 9/5 × 9 = 18/45 - Add the two like fractions:
360/45 + 18/45 = 360 + 18/45 = 378/45 - 378/45 simplified gives 42/5
- So, 72/9 + 2/5 = 42/5
In mixed form: 82/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/9+4/5 72/18+2/5 72/9+2/10 72/9+6/5 72/27+2/5 72/9+2/15 72/9+10/5 72/45+2/5 72/9+2/25 72/9+14/5 72/63+2/5 72/9+2/35