Compare 20/15 and 70/90
1st number: 1 5/15, 2nd number: 70/90
20/15 is greater than 70/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
20/15 = 20 × 6/15 × 6 = 120/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
70/90 = 70 × 1/90 × 1 = 70/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 120/90 > 70/90 or 20/15 > 70/90
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