Compare 18/45 and 28/30
18/45 is smaller than 28/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
18/45 = 18 × 2/45 × 2 = 36/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
28/30 = 28 × 3/30 × 3 = 84/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 36/90 < 84/90 or 18/45 < 28/30
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Related: 36/45 and 28/30 18/45 and 56/30 18/90 and 28/30 18/45 and 28/60 54/45 and 28/30 18/45 and 84/30 18/45 and 28/90 90/45 and 28/30