Compare 45/10 and 21/7
1st number: 4 5/10, 2nd number: 3 0/7
45/10 is greater than 21/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
45/10 = 45 × 7/10 × 7 = 315/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
21/7 = 21 × 10/7 × 10 = 210/70 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 315/70 > 210/70 or 45/10 > 21/7
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