Compare 21/7 and 70/45
1st number: 3 0/7, 2nd number: 1 25/45
21/7 is greater than 70/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
21/7 = 21 × 45/7 × 45 = 945/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
70/45 = 70 × 7/45 × 7 = 490/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 945/315 > 490/315 or 21/7 > 70/45
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