Compare 70/21 and 84/45
1st number: 3 7/21, 2nd number: 1 39/45
70/21 is greater than 84/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
70/21 = 70 × 15/21 × 15 = 1050/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
84/45 = 84 × 7/45 × 7 = 588/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1050/315 > 588/315 or 70/21 > 84/45
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