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Subtract 18/70 from 40/30

1st number: 1 10/30, 2nd number: 18/70

40/30 - 18/70 is 113/105.

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,
    40/30 = 40 × 7/30 × 7 = 280/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    18/70 = 18 × 3/70 × 3 = 54/210
  4. Subtract the two like fractions:
    280/210 - 54/210 = 280 - 54/210 = 226/210
  5. After reducing the fraction, the answer is 113/105
  6. In mixed form: 18/105

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