Add 15/5 and 18/14
1st number: 3 0/5, 2nd number: 1 4/14
15/5 + 18/14 is 30/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 14 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
15/5 = 15 × 14/5 × 14 = 210/70 - Likewise, for the 2nd fraction, since 14 × 5 = 70,
18/14 = 18 × 5/14 × 5 = 90/70 - Add the two like fractions:
210/70 + 90/70 = 210 + 90/70 = 300/70 - 300/70 simplified gives 30/7
- So, 15/5 + 18/14 = 30/7
In mixed form: 42/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/5+18/14 15/5+36/14 15/10+18/14 15/5+18/28 45/5+18/14 15/5+54/14 15/5+18/42 75/5+18/14 15/5+90/14 15/25+18/14 15/5+18/70 15/35+18/14 15/5+18/98