Add 81/25 and 30/9
1st number: 3 6/25, 2nd number: 3 3/9
81/25 + 30/9 is 493/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
81/25 = 81 × 9/25 × 9 = 729/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
30/9 = 30 × 25/9 × 25 = 750/225 - Add the two like fractions:
729/225 + 750/225 = 729 + 750/225 = 1479/225 - 1479/225 simplified gives 493/75
- So, 81/25 + 30/9 = 493/75
In mixed form: 643/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/25+60/9 81/50+30/9 81/25+30/18 81/25+90/9 81/75+30/9 81/25+30/27 81/25+30/45 81/25+30/63