Add 21/42 and 49/14
1st number: 21/42, 2nd number: 3 7/14
21/42 + 49/14 is 4/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
21/42 = 21 × 1/42 × 1 = 21/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
49/14 = 49 × 3/14 × 3 = 147/42 - Add the two like fractions:
21/42 + 147/42 = 21 + 147/42 = 168/42 - 168/42 simplified gives 4/1
- So, 21/42 + 49/14 = 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 21/42+98/14 21/84+49/14 21/42+49/28 63/42+49/14 21/42+49/42 21/42+49/70 21/42+49/98