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Subtract 45/30 from 70/50

1st number: 1 20/50, 2nd number: 1 15/30

70/50 - 45/30 is -1/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 30 is 150

    Next, find the equivalent fraction of both fractional numbers with denominator 150
  2. For the 1st fraction, since 50 × 3 = 150,
    70/50 = 70 × 3/50 × 3 = 210/150
  3. Likewise, for the 2nd fraction, since 30 × 5 = 150,
    45/30 = 45 × 5/30 × 5 = 225/150
  4. Subtract the two like fractions:
    210/150 - 225/150 = 210 - 225/150 = -15/150
  5. After reducing the fraction, the answer is -1/10

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