Answers

Compare 8/42 and 90/20

1^st number: 8/42, 2^nd number: 4 10/20

8/42 is smaller than 90/20

Steps for comparing fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 20 is 420
2. For the 1st fraction, since 42 × 10 = 420,
   8/42 = 8 × 10/42 × 10 = 80/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   90/20 = 90 × 21/20 × 21 = 1890/420
4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
5. 80/420 < 1890/420 or 8/42 < 90/20

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