Add 6/42 and 70/35
1st number: 6/42, 2nd number: 2 0/35
6/42 + 70/35 is 15/7.
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,
6/42 = 6 × 5/42 × 5 = 30/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
70/35 = 70 × 6/35 × 6 = 420/210 - Add the two like fractions:
30/210 + 420/210 = 30 + 420/210 = 450/210 - 450/210 simplified gives 15/7
- So, 6/42 + 70/35 = 15/7
In mixed form: 21/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/42+70/35 6/84+70/35 18/42+70/35 30/42+70/35