Add 9/6 and 21/72
1st number: 1 3/6, 2nd number: 21/72
9/6 + 21/72 is 43/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 6 × 12 = 72,
9/6 = 9 × 12/6 × 12 = 108/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Add the two like fractions:
108/72 + 21/72 = 108 + 21/72 = 129/72 - 129/72 simplified gives 43/24
- So, 9/6 + 21/72 = 43/24
In mixed form: 119/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/6+21/72 9/6+42/72 9/12+21/72 27/6+21/72 9/6+63/72 9/18+21/72 45/6+21/72 9/30+21/72 63/6+21/72 9/42+21/72