Add 90/21 and 36/16
1st number: 4 6/21, 2nd number: 2 4/16
90/21 + 36/16 is 183/28.
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,
90/21 = 90 × 16/21 × 16 = 1440/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
36/16 = 36 × 21/16 × 21 = 756/336 - Add the two like fractions:
1440/336 + 756/336 = 1440 + 756/336 = 2196/336 - 2196/336 simplified gives 183/28
- So, 90/21 + 36/16 = 183/28
In mixed form: 615/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21+72/16 90/42+36/16 90/21+36/32 90/63+36/16 90/21+36/48 90/21+36/80