Add 21/27 and 4/16
21/27 + 4/16 is 37/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 16 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 27 × 16 = 432,
21/27 = 21 × 16/27 × 16 = 336/432 - Likewise, for the 2nd fraction, since 16 × 27 = 432,
4/16 = 4 × 27/16 × 27 = 108/432 - Add the two like fractions:
336/432 + 108/432 = 336 + 108/432 = 444/432 - 444/432 simplified gives 37/36
- So, 21/27 + 4/16 = 37/36
In mixed form: 11/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27+4/16 21/27+8/16 21/54+4/16 21/27+4/32 63/27+4/16 21/27+12/16 21/81+4/16 21/27+4/48 21/27+20/16 21/27+4/80 21/27+28/16