Add 27/18 and 70/35
1st number: 1 9/18, 2nd number: 2 0/35
27/18 + 70/35 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
27/18 = 27 × 35/18 × 35 = 945/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
70/35 = 70 × 18/35 × 18 = 1260/630 - Add the two like fractions:
945/630 + 1260/630 = 945 + 1260/630 = 2205/630 - 2205/630 simplified gives 7/2
- So, 27/18 + 70/35 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+70/35 27/36+70/35 81/18+70/35 27/54+70/35 27/90+70/35