Compare 40/75 and 12/45
40/75 is greater than 12/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
40/75 = 40 × 3/75 × 3 = 120/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
12/45 = 12 × 5/45 × 5 = 60/225 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 120/225 > 60/225 or 40/75 > 12/45
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