Compare 90/15 and 42/20
1st number: 6 0/15, 2nd number: 2 2/20
90/15 is greater than 42/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
90/15 = 90 × 4/15 × 4 = 360/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
42/20 = 42 × 3/20 × 3 = 126/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 360/60 > 126/60 or 90/15 > 42/20
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