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Subtract 1/35 from 7/20

7/20 - 1/35 is 9/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 35 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    7/20 = 7 × 7/20 × 7 = 49/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    1/35 = 1 × 4/35 × 4 = 4/140
  4. Subtract the two like fractions:
    49/140 - 4/140 = 49 - 4/140 = 45/140
  5. After reducing the fraction, the answer is 9/28

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