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Answers.everydaycalculation.com » Compare fractions

Compare 45/15 and 72/42

1st number: 3 0/15, 2nd number: 1 30/42

45/15 is greater than 72/42

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 15 × 14 = 210,
    45/15 = 45 × 14/15 × 14 = 630/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    72/42 = 72 × 5/42 × 5 = 360/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 630/210 > 360/210 or 45/15 > 72/42

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