Add 14/42 and 45/21
1st number: 14/42, 2nd number: 2 3/21
14/42 + 45/21 is 52/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
14/42 = 14 × 1/42 × 1 = 14/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
45/21 = 45 × 2/21 × 2 = 90/42 - Add the two like fractions:
14/42 + 90/42 = 14 + 90/42 = 104/42 - 104/42 simplified gives 52/21
- So, 14/42 + 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: 28/42+45/21 14/42+90/21 14/84+45/21 14/42+45/42 14/42+45/63 70/42+45/21 98/42+45/21