Add 5/18 and 70/42
1st number: 5/18, 2nd number: 1 28/42
5/18 + 70/42 is 35/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
5/18 = 5 × 7/18 × 7 = 35/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
70/42 = 70 × 3/42 × 3 = 210/126 - Add the two like fractions:
35/126 + 210/126 = 35 + 210/126 = 245/126 - 245/126 simplified gives 35/18
- So, 5/18 + 70/42 = 35/18
In mixed form: 117/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+70/42 5/36+70/42 5/18+70/84 15/18+70/42 5/54+70/42 25/18+70/42 5/90+70/42 35/18+70/42