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Subtract 2/30 from 2/21

2/21 - 2/30 is 1/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    2/21 = 2 × 10/21 × 10 = 20/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    2/30 = 2 × 7/30 × 7 = 14/210
  4. Subtract the two like fractions:
    20/210 - 14/210 = 20 - 14/210 = 6/210
  5. After reducing the fraction, the answer is 1/35

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