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Subtract 48/18 from 15/8

1st number: 1 7/8, 2nd number: 2 12/18

15/8 - 48/18 is -19/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 18 is 72
  2. For the 1st fraction, since 8 × 9 = 72,
    15/8 = 15 × 9/8 × 9 = 135/72
  3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
    48/18 = 48 × 4/18 × 4 = 192/72
  4. Subtract the two fractions:
    135/72 - 192/72 = 135 - 192/72 = -57/72
  5. After reducing the fraction, the answer is -19/24

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