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Subtract 45/10 from 45/80

1st number: 45/80, 2nd number: 4 5/10

45/80 - 45/10 is -63/16.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 10 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    45/80 = 45 × 1/80 × 1 = 45/80
  3. Likewise, for the 2nd fraction, since 10 × 8 = 80,
    45/10 = 45 × 8/10 × 8 = 360/80
  4. Subtract the two like fractions:
    45/80 - 360/80 = 45 - 360/80 = -315/80
  5. After reducing the fraction, the answer is -63/16

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