Compare 42/48 and 15/30
42/48 is greater than 15/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
42/48 = 42 × 5/48 × 5 = 210/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
15/30 = 15 × 8/30 × 8 = 120/240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/240 > 120/240 or 42/48 > 15/30
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