Add 40/36 and 21/18
1st number: 1 4/36, 2nd number: 1 3/18
40/36 + 21/18 is 41/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
40/36 = 40 × 1/36 × 1 = 40/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
21/18 = 21 × 2/18 × 2 = 42/36 - Add the two like fractions:
40/36 + 42/36 = 40 + 42/36 = 82/36 - 82/36 simplified gives 41/18
- So, 40/36 + 21/18 = 41/18
In mixed form: 25/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/36+21/18 40/36+42/18 40/72+21/18 40/36+21/36 40/36+63/18 40/36+21/54 40/36+21/90