Add 70/18 and 35/7
1st number: 3 16/18, 2nd number: 5 0/7
70/18 + 35/7 is 80/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
70/18 = 70 × 7/18 × 7 = 490/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
35/7 = 35 × 18/7 × 18 = 630/126 - Add the two like fractions:
490/126 + 630/126 = 490 + 630/126 = 1120/126 - 1120/126 simplified gives 80/9
- So, 70/18 + 35/7 = 80/9
In mixed form: 88/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+70/7 70/36+35/7 70/18+35/14 70/54+35/7 70/18+35/21 70/90+35/7 70/18+35/49