Add 10/6 and 45/21
1st number: 1 4/6, 2nd number: 2 3/21
10/6 + 45/21 is 80/21.
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,
45/21 = 45 × 2/21 × 2 = 90/42 - Add the two like fractions:
70/42 + 90/42 = 70 + 90/42 = 160/42 - 160/42 simplified gives 80/21
- So, 10/6 + 45/21 = 80/21
In mixed form: 317/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/6+45/21 10/6+90/21 10/12+45/21 10/6+45/42 30/6+45/21 10/18+45/21 10/6+45/63 50/6+45/21 10/30+45/21 70/6+45/21 10/42+45/21