Answers

Compare 4/21 and 18/60

4/21 is smaller than 18/60

Steps for comparing fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 60 is 420
2. For the 1st fraction, since 21 × 20 = 420,
   4/21 = 4 × 20/21 × 20 = 80/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   18/60 = 18 × 7/60 × 7 = 126/420
4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
5. 80/420 < 126/420 or 4/21 < 18/60

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