Compare 2/20 and 7/90
2/20 is greater than 7/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
2/20 = 2 × 9/20 × 9 = 18/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
7/90 = 7 × 2/90 × 2 = 14/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 18/180 > 14/180 or 2/20 > 7/90
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