Add 2/21 and 90/16
1st number: 2/21, 2nd number: 5 10/16
2/21 + 90/16 is 961/168.
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,
2/21 = 2 × 16/21 × 16 = 32/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
90/16 = 90 × 21/16 × 21 = 1890/336 - Add the two like fractions:
32/336 + 1890/336 = 32 + 1890/336 = 1922/336 - 1922/336 simplified gives 961/168
- So, 2/21 + 90/16 = 961/168
In mixed form: 5121/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+90/16 2/42+90/16 2/21+90/32 6/21+90/16 2/63+90/16 2/21+90/48 10/21+90/16 2/21+90/80 14/21+90/16