Add 40/18 and 72/9
1st number: 2 4/18, 2nd number: 8 0/9
40/18 + 72/9 is 92/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
40/18 = 40 × 1/18 × 1 = 40/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
72/9 = 72 × 2/9 × 2 = 144/18 - Add the two like fractions:
40/18 + 144/18 = 40 + 144/18 = 184/18 - 184/18 simplified gives 92/9
- So, 40/18 + 72/9 = 92/9
In mixed form: 102/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+72/9 40/36+72/9 40/18+72/18 40/54+72/9 40/18+72/27 40/90+72/9 40/18+72/45 40/18+72/63