Compare 7/18 and 20/70
7/18 is greater than 20/70
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,
7/18 = 7 × 35/18 × 35 = 245/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
20/70 = 20 × 9/70 × 9 = 180/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 245/630 > 180/630 or 7/18 > 20/70
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