Add 1/72 and 21/36
1/72 + 21/36 is 43/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
1/72 = 1 × 1/72 × 1 = 1/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
21/36 = 21 × 2/36 × 2 = 42/72 - Add the two like fractions:
1/72 + 42/72 = 1 + 42/72 = 43/72 - So, 1/72 + 21/36 = 43/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/72+21/36 1/72+42/36 1/72+21/72 3/72+21/36 1/72+63/36 5/72+21/36 7/72+21/36