Add 42/5 and 18/54
1st number: 8 2/5, 2nd number: 18/54
42/5 + 18/54 is 131/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 5 × 54 = 270,
42/5 = 42 × 54/5 × 54 = 2268/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
18/54 = 18 × 5/54 × 5 = 90/270 - Add the two like fractions:
2268/270 + 90/270 = 2268 + 90/270 = 2358/270 - 2358/270 simplified gives 131/15
- So, 42/5 + 18/54 = 131/15
In mixed form: 811/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+18/54 42/5+36/54 42/10+18/54 42/15+18/54 42/5+90/54 42/25+18/54 42/35+18/54