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Answers.everydaycalculation.com » Compare fractions

Compare 2/4 and 21/45

2/4 is greater than 21/45

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 45 is 180
  2. For the 1st fraction, since 4 × 45 = 180,
    2/4 = 2 × 45/4 × 45 = 90/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    21/45 = 21 × 4/45 × 4 = 84/180
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 90/180 > 84/180 or 2/4 > 21/45

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