Add 2/8 and 21/72
2/8 + 21/72 is 13/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
2/8 = 2 × 9/8 × 9 = 18/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Add the two like fractions:
18/72 + 21/72 = 18 + 21/72 = 39/72 - 39/72 simplified gives 13/24
- So, 2/8 + 21/72 = 13/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8+21/72 2/8+42/72 2/16+21/72 6/8+21/72 2/8+63/72 2/24+21/72 10/8+21/72 2/40+21/72 14/8+21/72 2/56+21/72