Add 42/4 and 63/81
1st number: 10 2/4, 2nd number: 63/81
42/4 + 63/81 is 203/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
42/4 = 42 × 81/4 × 81 = 3402/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
63/81 = 63 × 4/81 × 4 = 252/324 - Add the two like fractions:
3402/324 + 252/324 = 3402 + 252/324 = 3654/324 - 3654/324 simplified gives 203/18
- So, 42/4 + 63/81 = 203/18
In mixed form: 115/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+63/81 42/8+63/81 42/12+63/81 42/20+63/81 42/28+63/81