Add 40/42 and 6/70
40/42 + 6/70 is 109/105.
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,
40/42 = 40 × 5/42 × 5 = 200/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210 - Add the two like fractions:
200/210 + 18/210 = 200 + 18/210 = 218/210 - 218/210 simplified gives 109/105
- So, 40/42 + 6/70 = 109/105
In mixed form: 14/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/42+6/70 40/42+12/70 40/84+6/70 40/42+18/70 40/42+30/70 40/42+42/70