Add 9/6 and 21/42
1st number: 1 3/6, 2nd number: 21/42
9/6 + 21/42 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
9/6 = 9 × 7/6 × 7 = 63/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
21/42 = 21 × 1/42 × 1 = 21/42 - Add the two like fractions:
63/42 + 21/42 = 63 + 21/42 = 84/42 - 84/42 simplified gives 2/1
- So, 9/6 + 21/42 = 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/6+21/42 9/12+21/42 9/6+21/84 27/6+21/42 9/6+63/42 9/18+21/42 45/6+21/42 9/30+21/42 63/6+21/42 9/42+21/42