Add 18/45 and 56/70
18/45 + 56/70 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
56/70 = 56 × 9/70 × 9 = 504/630 - Add the two like fractions:
252/630 + 504/630 = 252 + 504/630 = 756/630 - 756/630 simplified gives 6/5
- So, 18/45 + 56/70 = 6/5
In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+56/70 18/90+56/70 54/45+56/70 90/45+56/70