Compare 80/90 and 3/4
80/90 is greater than 3/4
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
80/90 = 80 × 2/90 × 2 = 160/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
3/4 = 3 × 45/4 × 45 = 135/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 160/180 > 135/180 or 80/90 > 3/4
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