Compare 7/20 and 8/40
7/20 is greater than 8/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
7/20 = 7 × 2/20 × 2 = 14/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
8/40 = 8 × 1/40 × 1 = 8/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 14/40 > 8/40 or 7/20 > 8/40
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