Add 4/36 and 6/21
4/36 + 6/21 is 25/63.
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,
4/36 = 4 × 7/36 × 7 = 28/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
6/21 = 6 × 12/21 × 12 = 72/252 - Add the two like fractions:
28/252 + 72/252 = 28 + 72/252 = 100/252 - 100/252 simplified gives 25/63
- So, 4/36 + 6/21 = 25/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/36+6/21 4/36+12/21 4/72+6/21 4/36+6/42 12/36+6/21 4/36+18/21 4/36+6/63 20/36+6/21 4/36+30/21 28/36+6/21 4/36+42/21