Compare 84/18 and 30/70
1st number: 4 12/18, 2nd number: 30/70
84/18 is greater than 30/70
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
84/18 = 84 × 35/18 × 35 = 2940/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
30/70 = 30 × 9/70 × 9 = 270/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2940/630 > 270/630 or 84/18 > 30/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18 and 60/70 84/36 and 30/70 84/18 and 90/70 84/54 and 30/70 84/90 and 30/70