Add 6/21 and 42/48
6/21 + 42/48 is 65/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
6/21 = 6 × 16/21 × 16 = 96/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336 - Add the two like fractions:
96/336 + 294/336 = 96 + 294/336 = 390/336 - 390/336 simplified gives 65/56
- So, 6/21 + 42/48 = 65/56
In mixed form: 19/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+42/48 6/21+84/48 6/42+42/48 6/21+42/96 18/21+42/48 6/63+42/48 30/21+42/48 42/21+42/48