Add 40/36 and 21/54
1st number: 1 4/36, 2nd number: 21/54
40/36 + 21/54 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 36 × 3 = 108,
40/36 = 40 × 3/36 × 3 = 120/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
21/54 = 21 × 2/54 × 2 = 42/108 - Add the two like fractions:
120/108 + 42/108 = 120 + 42/108 = 162/108 - 162/108 simplified gives 3/2
- So, 40/36 + 21/54 = 3/2
In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/36+21/54 40/36+42/54 40/72+21/54 40/36+63/54