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Answers.everydaycalculation.com » Compare fractions

Compare 72/42 and 90/30

1st number: 1 30/42, 2nd number: 3 0/30

72/42 is smaller than 90/30

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 30 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    72/42 = 72 × 5/42 × 5 = 360/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    90/30 = 90 × 7/30 × 7 = 630/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 360/210 < 630/210 or 72/42 < 90/30

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