Add 42/25 and 84/54
1st number: 1 17/25, 2nd number: 1 30/54
42/25 + 84/54 is 728/225.
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,
42/25 = 42 × 54/25 × 54 = 2268/1350 - Likewise, for the 2nd fraction, since 54 × 25 = 1350,
84/54 = 84 × 25/54 × 25 = 2100/1350 - Add the two like fractions:
2268/1350 + 2100/1350 = 2268 + 2100/1350 = 4368/1350 - 4368/1350 simplified gives 728/225
- So, 42/25 + 84/54 = 728/225
In mixed form: 353/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/25+84/54 42/50+84/54 42/75+84/54