Add 40/4 and 81/18
1st number: 10 0/4, 2nd number: 4 9/18
40/4 + 81/18 is 29/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
40/4 = 40 × 9/4 × 9 = 360/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
81/18 = 81 × 2/18 × 2 = 162/36 - Add the two like fractions:
360/36 + 162/36 = 360 + 162/36 = 522/36 - 522/36 simplified gives 29/2
- So, 40/4 + 81/18 = 29/2
In mixed form: 141/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4+81/18 40/8+81/18 40/4+81/36 40/12+81/18 40/4+81/54 40/20+81/18 40/4+81/90 40/28+81/18