Add 98/18 and 30/45
1st number: 5 8/18, 2nd number: 30/45
98/18 + 30/45 is 55/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 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 45 × 2 = 90,
30/45 = 30 × 2/45 × 2 = 60/90 - Add the two like fractions:
490/90 + 60/90 = 490 + 60/90 = 550/90 - 550/90 simplified gives 55/9
- So, 98/18 + 30/45 = 55/9
In mixed form: 61/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18+60/45 98/36+30/45 98/18+30/90 98/18+90/45 98/54+30/45 98/90+30/45