Add 12/21 and 9/48
12/21 + 9/48 is 85/112.
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,
12/21 = 12 × 16/21 × 16 = 192/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
9/48 = 9 × 7/48 × 7 = 63/336 - Add the two like fractions:
192/336 + 63/336 = 192 + 63/336 = 255/336 - 255/336 simplified gives 85/112
- So, 12/21 + 9/48 = 85/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21+9/48 12/21+18/48 12/42+9/48 12/21+9/96 36/21+9/48 12/21+27/48 12/63+9/48 60/21+9/48 12/21+45/48 84/21+9/48 12/21+63/48