Compare 28/18 and 80/45
1st number: 1 10/18, 2nd number: 1 35/45
28/18 is smaller than 80/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
28/18 = 28 × 5/18 × 5 = 140/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
80/45 = 80 × 2/45 × 2 = 160/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 140/90 < 160/90 or 28/18 < 80/45
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