Add 10/21 and 18/16
1st number: 10/21, 2nd number: 1 2/16
10/21 + 18/16 is 269/168.
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,
10/21 = 10 × 16/21 × 16 = 160/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
18/16 = 18 × 21/16 × 21 = 378/336 - Add the two like fractions:
160/336 + 378/336 = 160 + 378/336 = 538/336 - 538/336 simplified gives 269/168
- So, 10/21 + 18/16 = 269/168
In mixed form: 1101/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21+18/16 10/21+36/16 10/42+18/16 10/21+18/32 30/21+18/16 10/21+54/16 10/63+18/16 10/21+18/48 50/21+18/16 10/21+90/16 10/21+18/80 70/21+18/16