Add 70/18 and 50/90
1st number: 3 16/18, 2nd number: 50/90
70/18 + 50/90 is 40/9.
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,
70/18 = 70 × 5/18 × 5 = 350/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
50/90 = 50 × 1/90 × 1 = 50/90 - Add the two like fractions:
350/90 + 50/90 = 350 + 50/90 = 400/90 - 400/90 simplified gives 40/9
- So, 70/18 + 50/90 = 40/9
In mixed form: 44/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/36+50/90 70/54+50/90 70/90+50/90