Add 1/3 and 45/21
1st number: 1/3, 2nd number: 2 3/21
1/3 + 45/21 is 52/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
1/3 = 1 × 7/3 × 7 = 7/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
45/21 = 45 × 1/21 × 1 = 45/21 - Add the two like fractions:
7/21 + 45/21 = 7 + 45/21 = 52/21 - So, 1/3 + 45/21 = 52/21
In mixed form: 210/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3+45/21 1/3+90/21 1/6+45/21 1/3+45/42 1/9+45/21 1/3+45/63 5/3+45/21 1/15+45/21 7/3+45/21 1/21+45/21