Add 40/3 and 36/7
1st number: 13 1/3, 2nd number: 5 1/7
40/3 + 36/7 is 388/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
40/3 = 40 × 7/3 × 7 = 280/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
36/7 = 36 × 3/7 × 3 = 108/21 - Add the two like fractions:
280/21 + 108/21 = 280 + 108/21 = 388/21 - So, 40/3 + 36/7 = 388/21
In mixed form: 1810/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/3+36/7 40/3+72/7 40/6+36/7 40/3+36/14 40/9+36/7 40/3+36/21 40/15+36/7 40/3+36/35 40/21+36/7 40/3+36/49