Add 18/2 and 42/5
1st number: 9 0/2, 2nd number: 8 2/5
18/2 + 42/5 is 87/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
18/2 = 18 × 5/2 × 5 = 90/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
42/5 = 42 × 2/5 × 2 = 84/10 - Add the two like fractions:
90/10 + 84/10 = 90 + 84/10 = 174/10 - 174/10 simplified gives 87/5
- So, 18/2 + 42/5 = 87/5
In mixed form: 172/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2+42/5 18/2+84/5 18/4+42/5 18/2+42/10 54/2+42/5 18/6+42/5 18/2+42/15 90/2+42/5 18/10+42/5 18/2+42/25 18/14+42/5 18/2+42/35