Add 72/25 and 21/12
1st number: 2 22/25, 2nd number: 1 9/12
72/25 + 21/12 is 463/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
72/25 = 72 × 12/25 × 12 = 864/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300 - Add the two like fractions:
864/300 + 525/300 = 864 + 525/300 = 1389/300 - 1389/300 simplified gives 463/100
- So, 72/25 + 21/12 = 463/100
In mixed form: 463/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/25+42/12 72/50+21/12 72/25+21/24 72/25+63/12 72/75+21/12 72/25+21/36 72/25+21/60 72/25+21/84