Add 14/42 and 5/21
14/42 + 5/21 is 4/7.
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,
5/21 = 5 × 2/21 × 2 = 10/42 - Add the two like fractions:
14/42 + 10/42 = 14 + 10/42 = 24/42 - 24/42 simplified gives 4/7
- So, 14/42 + 5/21 = 4/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/42+5/21 14/42+10/21 14/84+5/21 14/42+5/42 14/42+15/21 14/42+5/63 70/42+5/21 14/42+25/21 98/42+5/21 14/42+35/21