Add 42/10 and 7/18
1st number: 4 2/10, 2nd number: 7/18
42/10 + 7/18 is 413/90.
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,
7/18 = 7 × 5/18 × 5 = 35/90 - Add the two like fractions:
378/90 + 35/90 = 378 + 35/90 = 413/90 - So, 42/10 + 7/18 = 413/90
In mixed form: 453/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+7/18 42/10+14/18 42/20+7/18 42/10+7/36 42/10+21/18 42/30+7/18 42/10+7/54 42/10+35/18 42/50+7/18 42/10+7/90 42/10+49/18 42/70+7/18