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Compare 45/10 and 42/20

1st number: 4 5/10, 2nd number: 2 2/20

45/10 is greater than 42/20

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 20 is 20
  2. For the 1st fraction, since 10 × 2 = 20,
    45/10 = 45 × 2/10 × 2 = 90/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    42/20 = 42 × 1/20 × 1 = 42/20
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 90/20 > 42/20 or 45/10 > 42/20

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