Add 6/21 and 45/14
1st number: 6/21, 2nd number: 3 3/14
6/21 + 45/14 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
6/21 = 6 × 2/21 × 2 = 12/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
45/14 = 45 × 3/14 × 3 = 135/42 - Add the two like fractions:
12/42 + 135/42 = 12 + 135/42 = 147/42 - 147/42 simplified gives 7/2
- So, 6/21 + 45/14 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+45/14 6/21+90/14 6/42+45/14 6/21+45/28 18/21+45/14 6/63+45/14 6/21+45/42 30/21+45/14 6/21+45/70 42/21+45/14 6/21+45/98