Add 70/10 and 42/18
1st number: 7 0/10, 2nd number: 2 6/18
70/10 + 42/18 is 28/3.
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,
70/10 = 70 × 9/10 × 9 = 630/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Add the two like fractions:
630/90 + 210/90 = 630 + 210/90 = 840/90 - 840/90 simplified gives 28/3
- So, 70/10 + 42/18 = 28/3
In mixed form: 91/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/10+84/18 70/20+42/18 70/10+42/36 70/30+42/18 70/10+42/54 70/50+42/18 70/10+42/90