Add 16/36 and 27/21
1st number: 16/36, 2nd number: 1 6/21
16/36 + 27/21 is 109/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
16/36 = 16 × 7/36 × 7 = 112/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
27/21 = 27 × 12/21 × 12 = 324/252 - Add the two like fractions:
112/252 + 324/252 = 112 + 324/252 = 436/252 - 436/252 simplified gives 109/63
- So, 16/36 + 27/21 = 109/63
In mixed form: 146/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/36+27/21 16/36+54/21 16/72+27/21 16/36+27/42 48/36+27/21 16/36+81/21 16/36+27/63 80/36+27/21