Add 9/36 and 84/42
1st number: 9/36, 2nd number: 2 0/42
9/36 + 84/42 is 9/4.
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,
9/36 = 9 × 7/36 × 7 = 63/252 - Likewise, for the 2nd fraction, since 42 × 6 = 252,
84/42 = 84 × 6/42 × 6 = 504/252 - Add the two like fractions:
63/252 + 504/252 = 63 + 504/252 = 567/252 - 567/252 simplified gives 9/4
- So, 9/36 + 84/42 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36+84/42 9/72+84/42 27/36+84/42 45/36+84/42 63/36+84/42