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Compare 4/21 and 18/10

1st number: 4/21, 2nd number: 1 8/10

4/21 is smaller than 18/10

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 10 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    4/21 = 4 × 10/21 × 10 = 40/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    18/10 = 18 × 21/10 × 21 = 378/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 40/210 < 378/210 or 4/21 < 18/10

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