Compare 3/7 and 18/45
3/7 is greater than 18/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
3/7 = 3 × 45/7 × 45 = 135/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
18/45 = 18 × 7/45 × 7 = 126/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 135/315 > 126/315 or 3/7 > 18/45
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