Add 18/9 and 70/45
1st number: 2 0/9, 2nd number: 1 25/45
18/9 + 70/45 is 32/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
18/9 = 18 × 5/9 × 5 = 90/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
70/45 = 70 × 1/45 × 1 = 70/45 - Add the two like fractions:
90/45 + 70/45 = 90 + 70/45 = 160/45 - 160/45 simplified gives 32/9
- So, 18/9 + 70/45 = 32/9
In mixed form: 35/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+70/45 18/9+70/90 54/9+70/45 18/27+70/45 90/9+70/45 18/45+70/45 18/63+70/45