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Compare 4/21 and 20/35

4/21 is smaller than 20/35

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 35 is 105
  2. For the 1st fraction, since 21 × 5 = 105,
    4/21 = 4 × 5/21 × 5 = 20/105
  3. Likewise, for the 2nd fraction, since 35 × 3 = 105,
    20/35 = 20 × 3/35 × 3 = 60/105
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 20/105 < 60/105 or 4/21 < 20/35

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