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Subtract 15/9 from 8/5

1st number: 1 3/5, 2nd number: 1 6/9

8/5 - 15/9 is -1/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 9 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 5 × 9 = 45,
    8/5 = 8 × 9/5 × 9 = 72/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    15/9 = 15 × 5/9 × 5 = 75/45
  4. Subtract the two like fractions:
    72/45 - 75/45 = 72 - 75/45 = -3/45
  5. After reducing the fraction, the answer is -1/15

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