Add 10/45 and 21/6
1st number: 10/45, 2nd number: 3 3/6
10/45 + 21/6 is 67/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
10/45 = 10 × 2/45 × 2 = 20/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
21/6 = 21 × 15/6 × 15 = 315/90 - Add the two like fractions:
20/90 + 315/90 = 20 + 315/90 = 335/90 - 335/90 simplified gives 67/18
- So, 10/45 + 21/6 = 67/18
In mixed form: 313/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/45+21/6 10/45+42/6 10/90+21/6 10/45+21/12 30/45+21/6 10/45+63/6 10/45+21/18 50/45+21/6 10/45+21/30 70/45+21/6 10/45+21/42