Add 8/42 and 81/36
1st number: 8/42, 2nd number: 2 9/36
8/42 + 81/36 is 205/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 42 × 6 = 252,
8/42 = 8 × 6/42 × 6 = 48/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
81/36 = 81 × 7/36 × 7 = 567/252 - Add the two like fractions:
48/252 + 567/252 = 48 + 567/252 = 615/252 - 615/252 simplified gives 205/84
- So, 8/42 + 81/36 = 205/84
In mixed form: 237/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42+81/36 8/84+81/36 8/42+81/72 24/42+81/36 40/42+81/36 56/42+81/36