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Subtract 1/40 from 63/45

1st number: 1 18/45, 2nd number: 1/40

63/45 - 1/40 is 11/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 45 × 8 = 360,
    63/45 = 63 × 8/45 × 8 = 504/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    1/40 = 1 × 9/40 × 9 = 9/360
  4. Subtract the two like fractions:
    504/360 - 9/360 = 504 - 9/360 = 495/360
  5. After reducing the fraction, the answer is 11/8
  6. In mixed form: 13/8

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