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Subtract 15/90 from 7/8

7/8 - 15/90 is 17/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 8 × 45 = 360,
    7/8 = 7 × 45/8 × 45 = 315/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    15/90 = 15 × 4/90 × 4 = 60/360
  4. Subtract the two like fractions:
    315/360 - 60/360 = 315 - 60/360 = 255/360
  5. After reducing the fraction, the answer is 17/24

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