Add 42/18 and 7/10
1st number: 2 6/18, 2nd number: 7/10
42/18 + 7/10 is 91/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
7/10 = 7 × 9/10 × 9 = 63/90 - Add the two like fractions:
210/90 + 63/90 = 210 + 63/90 = 273/90 - 273/90 simplified gives 91/30
- So, 42/18 + 7/10 = 91/30
In mixed form: 31/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+7/10 42/18+14/10 42/36+7/10 42/18+7/20 42/18+21/10 42/54+7/10 42/18+7/30 42/18+35/10 42/90+7/10 42/18+7/50 42/18+49/10 42/18+7/70