Compare 30/98 and 18/80
30/98 is greater than 18/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 98 × 40 = 3920,
30/98 = 30 × 40/98 × 40 = 1200/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
18/80 = 18 × 49/80 × 49 = 882/3920 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1200/3920 > 882/3920 or 30/98 > 18/80
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