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Subtract 35/20 from 30/35

1st number: 30/35, 2nd number: 1 15/20

30/35 - 35/20 is -25/28.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 35 × 4 = 140,
    30/35 = 30 × 4/35 × 4 = 120/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    35/20 = 35 × 7/20 × 7 = 245/140
  4. Subtract the two like fractions:
    120/140 - 245/140 = 120 - 245/140 = -125/140
  5. After reducing the fraction, the answer is -25/28

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