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Subtract 7/9 from 90/80

1st number: 1 10/80, 2nd number: 7/9

90/80 - 7/9 is 25/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 9 is 720
  2. For the 1st fraction, since 80 × 9 = 720,
    90/80 = 90 × 9/80 × 9 = 810/720
  3. Likewise, for the 2nd fraction, since 9 × 80 = 720,
    7/9 = 7 × 80/9 × 80 = 560/720
  4. Subtract the two fractions:
    810/720 - 560/720 = 810 - 560/720 = 250/720
  5. After reducing the fraction, the answer is 25/72

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