Add 70/42 and 35/7
1st number: 1 28/42, 2nd number: 5 0/7
70/42 + 35/7 is 20/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
70/42 = 70 × 1/42 × 1 = 70/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
35/7 = 35 × 6/7 × 6 = 210/42 - Add the two like fractions:
70/42 + 210/42 = 70 + 210/42 = 280/42 - 280/42 simplified gives 20/3
- So, 70/42 + 35/7 = 20/3
In mixed form: 62/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+70/7 70/84+35/7 70/42+35/14 70/42+35/21 70/42+35/49