Compare 75/90 and 70/20
1st number: 75/90, 2nd number: 3 10/20
75/90 is smaller than 70/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
75/90 = 75 × 2/90 × 2 = 150/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
70/20 = 70 × 9/20 × 9 = 630/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 150/180 < 630/180 or 75/90 < 70/20
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