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Subtract 72/70 from 3/30

1st number: 3/30, 2nd number: 1 2/70

3/30 - 72/70 is -13/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 70 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    3/30 = 3 × 7/30 × 7 = 21/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    72/70 = 72 × 3/70 × 3 = 216/210
  4. Subtract the two like fractions:
    21/210 - 216/210 = 21 - 216/210 = -195/210
  5. After reducing the fraction, the answer is -13/14

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