Add 10/42 and 70/28
1st number: 10/42, 2nd number: 2 14/28
10/42 + 70/28 is 115/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
10/42 = 10 × 2/42 × 2 = 20/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
70/28 = 70 × 3/28 × 3 = 210/84 - Add the two like fractions:
20/84 + 210/84 = 20 + 210/84 = 230/84 - 230/84 simplified gives 115/42
- So, 10/42 + 70/28 = 115/42
In mixed form: 231/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/42+70/28 10/84+70/28 10/42+70/56 30/42+70/28 10/42+70/84 50/42+70/28 70/42+70/28