Add 2/21 and 12/16
2/21 + 12/16 is 71/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
2/21 = 2 × 16/21 × 16 = 32/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
12/16 = 12 × 21/16 × 21 = 252/336 - Add the two like fractions:
32/336 + 252/336 = 32 + 252/336 = 284/336 - 284/336 simplified gives 71/84
- So, 2/21 + 12/16 = 71/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+12/16 2/21+24/16 2/42+12/16 2/21+12/32 6/21+12/16 2/21+36/16 2/63+12/16 2/21+12/48 10/21+12/16 2/21+60/16 2/21+12/80 14/21+12/16 2/21+84/16