Add 9/36 and 2/21
9/36 + 2/21 is 29/84.
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,
9/36 = 9 × 7/36 × 7 = 63/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
2/21 = 2 × 12/21 × 12 = 24/252 - Add the two like fractions:
63/252 + 24/252 = 63 + 24/252 = 87/252 - 87/252 simplified gives 29/84
- So, 9/36 + 2/21 = 29/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36+2/21 9/36+4/21 9/72+2/21 9/36+2/42 27/36+2/21 9/36+6/21 9/36+2/63 45/36+2/21 9/36+10/21 63/36+2/21 9/36+14/21