Compare 15/42 and 90/30
1st number: 15/42, 2nd number: 3 0/30
15/42 is smaller than 90/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
15/42 = 15 × 5/42 × 5 = 75/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
90/30 = 90 × 7/30 × 7 = 630/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/210 < 630/210 or 15/42 < 90/30
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