Add 3/36 and 63/42
1st number: 3/36, 2nd number: 1 21/42
3/36 + 63/42 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 42 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
3/36 = 3 × 7/36 × 7 = 21/252 - Likewise, for the 2nd fraction, since 42 × 6 = 252,
63/42 = 63 × 6/42 × 6 = 378/252 - Add the two like fractions:
21/252 + 378/252 = 21 + 378/252 = 399/252 - 399/252 simplified gives 19/12
- So, 3/36 + 63/42 = 19/12
In mixed form: 17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/36+63/42 3/72+63/42 3/36+63/84 9/36+63/42 15/36+63/42 21/36+63/42