Compare 21/7 and 84/63
1st number: 3 0/7, 2nd number: 1 21/63
21/7 is greater than 84/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
21/7 = 21 × 9/7 × 9 = 189/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
84/63 = 84 × 1/63 × 1 = 84/63 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 189/63 > 84/63 or 21/7 > 84/63
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