Add 18/5 and 70/7
1st number: 3 3/5, 2nd number: 10 0/7
18/5 + 70/7 is 68/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
18/5 = 18 × 7/5 × 7 = 126/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
70/7 = 70 × 5/7 × 5 = 350/35 - Add the two like fractions:
126/35 + 350/35 = 126 + 350/35 = 476/35 - 476/35 simplified gives 68/5
- So, 18/5 + 70/7 = 68/5
In mixed form: 133/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5+70/7 18/10+70/7 18/5+70/14 54/5+70/7 18/15+70/7 18/5+70/21 90/5+70/7 18/25+70/7 18/5+70/35 18/35+70/7 18/5+70/49