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Compare 21/50 and 80/70

1st number: 21/50, 2nd number: 1 10/70

21/50 is smaller than 80/70

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 70 is 350
  2. For the 1st fraction, since 50 × 7 = 350,
    21/50 = 21 × 7/50 × 7 = 147/350
  3. Likewise, for the 2nd fraction, since 70 × 5 = 350,
    80/70 = 80 × 5/70 × 5 = 400/350
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 147/350 < 400/350 or 21/50 < 80/70

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