Add 45/3 and 21/14
1st number: 15 0/3, 2nd number: 1 7/14
45/3 + 21/14 is 33/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
45/3 = 45 × 14/3 × 14 = 630/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
21/14 = 21 × 3/14 × 3 = 63/42 - Add the two like fractions:
630/42 + 63/42 = 630 + 63/42 = 693/42 - 693/42 simplified gives 33/2
- So, 45/3 + 21/14 = 33/2
In mixed form: 161/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3+21/14 45/3+42/14 45/6+21/14 45/3+21/28 45/3+63/14 45/9+21/14 45/3+21/42 45/15+21/14 45/3+21/70 45/21+21/14 45/3+21/98