Add 2/18 and 70/90
2/18 + 70/90 is 8/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
2/18 = 2 × 5/18 × 5 = 10/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
70/90 = 70 × 1/90 × 1 = 70/90 - Add the two like fractions:
10/90 + 70/90 = 10 + 70/90 = 80/90 - 80/90 simplified gives 8/9
- So, 2/18 + 70/90 = 8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18+70/90 2/36+70/90 6/18+70/90 2/54+70/90 10/18+70/90 2/90+70/90 14/18+70/90