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Subtract 42/6 from 70/45

1st number: 1 25/45, 2nd number: 7 0/6

70/45 - 42/6 is -49/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 6 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 45 × 2 = 90,
    70/45 = 70 × 2/45 × 2 = 140/90
  3. Likewise, for the 2nd fraction, since 6 × 15 = 90,
    42/6 = 42 × 15/6 × 15 = 630/90
  4. Subtract the two like fractions:
    140/90 - 630/90 = 140 - 630/90 = -490/90
  5. After reducing the fraction, the answer is -49/9

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