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Compare 42/8 and 28/21

1st number: 5 2/8, 2nd number: 1 7/21

42/8 is greater than 28/21

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 21 is 168
  2. For the 1st fraction, since 8 × 21 = 168,
    42/8 = 42 × 21/8 × 21 = 882/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    28/21 = 28 × 8/21 × 8 = 224/168
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 882/168 > 224/168 or 42/8 > 28/21

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