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Answers.everydaycalculation.com » Compare fractions

Compare 72/10 and 18/42

1st number: 7 2/10, 2nd number: 18/42

72/10 is greater than 18/42

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210
  2. For the 1st fraction, since 10 × 21 = 210,
    72/10 = 72 × 21/10 × 21 = 1512/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    18/42 = 18 × 5/42 × 5 = 90/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1512/210 > 90/210 or 72/10 > 18/42

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