Add 98/18 and 5/90
1st number: 5 8/18, 2nd number: 5/90
98/18 + 5/90 is 11/2.
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,
98/18 = 98 × 5/18 × 5 = 490/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
5/90 = 5 × 1/90 × 1 = 5/90 - Add the two like fractions:
490/90 + 5/90 = 490 + 5/90 = 495/90 - 495/90 simplified gives 11/2
- So, 98/18 + 5/90 = 11/2
In mixed form: 51/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18+10/90 98/36+5/90 98/18+15/90 98/54+5/90 98/18+25/90 98/90+5/90 98/18+35/90