Compare 70/21 and 42/84
1st number: 3 7/21, 2nd number: 42/84
70/21 is greater than 42/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
70/21 = 70 × 4/21 × 4 = 280/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
42/84 = 42 × 1/84 × 1 = 42/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 280/84 > 42/84 or 70/21 > 42/84
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