Compare 42/45 and 3/7
42/45 is greater than 3/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
42/45 = 42 × 7/45 × 7 = 294/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
3/7 = 3 × 45/7 × 45 = 135/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 294/315 > 135/315 or 42/45 > 3/7
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