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Compare 21/70 and 90/60

1st number: 21/70, 2nd number: 1 30/60

21/70 is smaller than 90/60

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 60 is 420
  2. For the 1st fraction, since 70 × 6 = 420,
    21/70 = 21 × 6/70 × 6 = 126/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    90/60 = 90 × 7/60 × 7 = 630/420
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 126/420 < 630/420 or 21/70 < 90/60

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