Add 42/10 and 5/18
1st number: 4 2/10, 2nd number: 5/18
42/10 + 5/18 is 403/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
42/10 = 42 × 9/10 × 9 = 378/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
5/18 = 5 × 5/18 × 5 = 25/90 - Add the two like fractions:
378/90 + 25/90 = 378 + 25/90 = 403/90 - So, 42/10 + 5/18 = 403/90
In mixed form: 443/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+5/18 42/10+10/18 42/20+5/18 42/10+5/36 42/10+15/18 42/30+5/18 42/10+5/54 42/10+25/18 42/50+5/18 42/10+5/90 42/10+35/18 42/70+5/18