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Subtract 18/15 from 10/18

1st number: 10/18, 2nd number: 1 3/15

10/18 - 18/15 is -29/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 15 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    10/18 = 10 × 5/18 × 5 = 50/90
  3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
    18/15 = 18 × 6/15 × 6 = 108/90
  4. Subtract the two like fractions:
    50/90 - 108/90 = 50 - 108/90 = -58/90
  5. After reducing the fraction, the answer is -29/45

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