Add 84/42 and 6/70
1st number: 2 0/42, 2nd number: 6/70
84/42 + 6/70 is 73/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
84/42 = 84 × 5/42 × 5 = 420/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210 - Add the two like fractions:
420/210 + 18/210 = 420 + 18/210 = 438/210 - 438/210 simplified gives 73/35
- So, 84/42 + 6/70 = 73/35
In mixed form: 23/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/42+12/70 84/42+18/70 84/42+30/70 84/42+42/70