Add 30/18 and 98/80
1st number: 1 12/18, 2nd number: 1 18/80
30/18 + 98/80 is 347/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
30/18 = 30 × 40/18 × 40 = 1200/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
98/80 = 98 × 9/80 × 9 = 882/720 - Add the two like fractions:
1200/720 + 882/720 = 1200 + 882/720 = 2082/720 - 2082/720 simplified gives 347/120
- So, 30/18 + 98/80 = 347/120
In mixed form: 2107/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+98/80 30/36+98/80 90/18+98/80 30/54+98/80 30/90+98/80