Add 10/6 and 42/21
1st number: 1 4/6, 2nd number: 2 0/21
10/6 + 42/21 is 11/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
10/6 = 10 × 7/6 × 7 = 70/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
42/21 = 42 × 2/21 × 2 = 84/42 - Add the two like fractions:
70/42 + 84/42 = 70 + 84/42 = 154/42 - 154/42 simplified gives 11/3
- So, 10/6 + 42/21 = 11/3
In mixed form: 32/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/6+42/21 10/6+84/21 10/12+42/21 30/6+42/21 10/18+42/21 10/6+42/63 50/6+42/21 10/30+42/21 70/6+42/21 10/42+42/21