Compare 90/84 and 42/40
1st number: 1 6/84, 2nd number: 1 2/40
90/84 is greater than 42/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
90/84 = 90 × 10/84 × 10 = 900/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
42/40 = 42 × 21/40 × 21 = 882/840 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 900/840 > 882/840 or 90/84 > 42/40
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