Add 10/21 and 8/16
10/21 + 8/16 is 41/42.
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,
8/16 = 8 × 21/16 × 21 = 168/336 - Add the two like fractions:
160/336 + 168/336 = 160 + 168/336 = 328/336 - 328/336 simplified gives 41/42
- So, 10/21 + 8/16 = 41/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21+8/16 10/42+8/16 10/21+8/32 30/21+8/16 10/21+24/16 10/63+8/16 10/21+8/48 50/21+8/16 10/21+40/16 10/21+8/80 70/21+8/16 10/21+56/16