Add 14/21 and 45/7
1st number: 14/21, 2nd number: 6 3/7
14/21 + 45/7 is 149/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 21 × 1 = 21,
14/21 = 14 × 1/21 × 1 = 14/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
45/7 = 45 × 3/7 × 3 = 135/21 - Add the two like fractions:
14/21 + 135/21 = 14 + 135/21 = 149/21 - So, 14/21 + 45/7 = 149/21
In mixed form: 72/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21+45/7 14/21+90/7 14/42+45/7 14/21+45/14 42/21+45/7 14/63+45/7 14/21+45/21 70/21+45/7 14/21+45/35 98/21+45/7 14/21+45/49