Add 70/42 and 2/18
1st number: 1 28/42, 2nd number: 2/18
70/42 + 2/18 is 16/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
70/42 = 70 × 3/42 × 3 = 210/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
2/18 = 2 × 7/18 × 7 = 14/126 - Add the two like fractions:
210/126 + 14/126 = 210 + 14/126 = 224/126 - 224/126 simplified gives 16/9
- So, 70/42 + 2/18 = 16/9
In mixed form: 17/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+4/18 70/84+2/18 70/42+2/36 70/42+6/18 70/42+2/54 70/42+10/18 70/42+2/90 70/42+14/18