Add 15/35 and 50/42
1st number: 15/35, 2nd number: 1 8/42
15/35 + 50/42 is 34/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
15/35 = 15 × 6/35 × 6 = 90/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
50/42 = 50 × 5/42 × 5 = 250/210 - Add the two like fractions:
90/210 + 250/210 = 90 + 250/210 = 340/210 - 340/210 simplified gives 34/21
- So, 15/35 + 50/42 = 34/21
In mixed form: 113/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35+50/42 15/70+50/42 15/35+50/84 45/35+50/42 75/35+50/42