Add 21/36 and 4/16
21/36 + 4/16 is 5/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 36 × 4 = 144,
21/36 = 21 × 4/36 × 4 = 84/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
4/16 = 4 × 9/16 × 9 = 36/144 - Add the two like fractions:
84/144 + 36/144 = 84 + 36/144 = 120/144 - 120/144 simplified gives 5/6
- So, 21/36 + 4/16 = 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36+4/16 21/36+8/16 21/72+4/16 21/36+4/32 63/36+4/16 21/36+12/16 21/36+4/48 21/36+20/16 21/36+4/80 21/36+28/16