Add 40/42 and 50/35
1st number: 40/42, 2nd number: 1 15/35
40/42 + 50/35 is 50/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
40/42 = 40 × 5/42 × 5 = 200/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
50/35 = 50 × 6/35 × 6 = 300/210 - Add the two like fractions:
200/210 + 300/210 = 200 + 300/210 = 500/210 - 500/210 simplified gives 50/21
- So, 40/42 + 50/35 = 50/21
In mixed form: 28/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/42+50/35 40/84+50/35 40/42+50/70