Add 18/15 and 42/50
1st number: 1 3/15, 2nd number: 42/50
18/15 + 42/50 is 51/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 15 × 10 = 150,
18/15 = 18 × 10/15 × 10 = 180/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
42/50 = 42 × 3/50 × 3 = 126/150 - Add the two like fractions:
180/150 + 126/150 = 180 + 126/150 = 306/150 - 306/150 simplified gives 51/25
- So, 18/15 + 42/50 = 51/25
In mixed form: 21/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+42/50 18/15+84/50 18/30+42/50 54/15+42/50 18/45+42/50 90/15+42/50 18/75+42/50