Add 21/35 and 50/42
1st number: 21/35, 2nd number: 1 8/42
21/35 + 50/42 is 188/105.
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,
21/35 = 21 × 6/35 × 6 = 126/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
50/42 = 50 × 5/42 × 5 = 250/210 - Add the two like fractions:
126/210 + 250/210 = 126 + 250/210 = 376/210 - 376/210 simplified gives 188/105
- So, 21/35 + 50/42 = 188/105
In mixed form: 183/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+50/42 21/70+50/42 21/35+50/84 63/35+50/42