Compare 42/80 and 18/48
42/80 is greater than 18/48
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
18/48 = 18 × 5/48 × 5 = 90/240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 126/240 > 90/240 or 42/80 > 18/48
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