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Compare 36/72 and 21/20

1st number: 36/72, 2nd number: 1 1/20

36/72 is smaller than 21/20

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 20 is 360
  2. For the 1st fraction, since 72 × 5 = 360,
    36/72 = 36 × 5/72 × 5 = 180/360
  3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
    21/20 = 21 × 18/20 × 18 = 378/360
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 180/360 < 378/360 or 36/72 < 21/20

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