Add 21/25 and 30/54
21/25 + 30/54 is 314/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 54 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 25 × 54 = 1350,
21/25 = 21 × 54/25 × 54 = 1134/1350 - Likewise, for the 2nd fraction, since 54 × 25 = 1350,
30/54 = 30 × 25/54 × 25 = 750/1350 - Add the two like fractions:
1134/1350 + 750/1350 = 1134 + 750/1350 = 1884/1350 - 1884/1350 simplified gives 314/225
- So, 21/25 + 30/54 = 314/225
In mixed form: 189/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25+30/54 21/25+60/54 21/50+30/54 63/25+30/54 21/25+90/54 21/75+30/54