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Subtract 90/36 from 6/15

1st number: 6/15, 2nd number: 2 18/36

6/15 - 90/36 is -21/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 36 is 180
  2. For the 1st fraction, since 15 × 12 = 180,
    6/15 = 6 × 12/15 × 12 = 72/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    90/36 = 90 × 5/36 × 5 = 450/180
  4. Subtract the two fractions:
    72/180 - 450/180 = 72 - 450/180 = -378/180
  5. After reducing the fraction, the answer is -21/10

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