Add 1/18 and 80/70
1st number: 1/18, 2nd number: 1 10/70
1/18 + 80/70 is 151/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
1/18 = 1 × 35/18 × 35 = 35/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
80/70 = 80 × 9/70 × 9 = 720/630 - Add the two like fractions:
35/630 + 720/630 = 35 + 720/630 = 755/630 - 755/630 simplified gives 151/126
- So, 1/18 + 80/70 = 151/126
In mixed form: 125/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/18+80/70 1/36+80/70 3/18+80/70 1/54+80/70 5/18+80/70 1/90+80/70 7/18+80/70