Add 56/36 and 42/81
1st number: 1 20/36, 2nd number: 42/81
56/36 + 42/81 is 56/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 36 × 9 = 324,
56/36 = 56 × 9/36 × 9 = 504/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
42/81 = 42 × 4/81 × 4 = 168/324 - Add the two like fractions:
504/324 + 168/324 = 504 + 168/324 = 672/324 - 672/324 simplified gives 56/27
- So, 56/36 + 42/81 = 56/27
In mixed form: 22/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/36+84/81 56/72+42/81