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Compare 42/70 and 90/40

1st number: 42/70, 2nd number: 2 10/40

42/70 is smaller than 90/40

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 40 is 280
  2. For the 1st fraction, since 70 × 4 = 280,
    42/70 = 42 × 4/70 × 4 = 168/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    90/40 = 90 × 7/40 × 7 = 630/280
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 168/280 < 630/280 or 42/70 < 90/40

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