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Subtract 80/60 from 15/30

1st number: 15/30, 2nd number: 1 20/60

15/30 - 80/60 is -5/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 60 is 60
  2. For the 1st fraction, since 30 × 2 = 60,
    15/30 = 15 × 2/30 × 2 = 30/60
  3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
    80/60 = 80 × 1/60 × 1 = 80/60
  4. Subtract the two fractions:
    30/60 - 80/60 = 30 - 80/60 = -50/60
  5. After reducing the fraction, the answer is -5/6

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