Add 40/3 and 20/72
1st number: 13 1/3, 2nd number: 20/72
40/3 + 20/72 is 245/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 3 × 24 = 72,
40/3 = 40 × 24/3 × 24 = 960/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Add the two like fractions:
960/72 + 20/72 = 960 + 20/72 = 980/72 - 980/72 simplified gives 245/18
- So, 40/3 + 20/72 = 245/18
In mixed form: 1311/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/3+20/72 40/3+40/72 40/6+20/72 40/3+60/72 40/9+20/72 40/15+20/72 40/21+20/72