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Subtract 15/90 from 8/10

8/10 - 15/90 is 19/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 10 × 9 = 90,
    8/10 = 8 × 9/10 × 9 = 72/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    15/90 = 15 × 1/90 × 1 = 15/90
  4. Subtract the two like fractions:
    72/90 - 15/90 = 72 - 15/90 = 57/90
  5. After reducing the fraction, the answer is 19/30

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