Add 30/2 and 21/72
1st number: 15 0/2, 2nd number: 21/72
30/2 + 21/72 is 367/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
30/2 = 30 × 36/2 × 36 = 1080/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Add the two like fractions:
1080/72 + 21/72 = 1080 + 21/72 = 1101/72 - 1101/72 simplified gives 367/24
- So, 30/2 + 21/72 = 367/24
In mixed form: 157/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/2+21/72 30/2+42/72 30/4+21/72 90/2+21/72 30/2+63/72 30/6+21/72 30/10+21/72 30/14+21/72