Answers

Compare 30/42 and 4/21

30/42 is greater than 4/21

Steps for comparing fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 21 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   30/42 = 30 × 1/42 × 1 = 30/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   4/21 = 4 × 2/21 × 2 = 8/42
4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
5. 30/42 > 8/42 or 30/42 > 4/21

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