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Subtract 25/18 from 7/90

1st number: 7/90, 2nd number: 1 7/18

7/90 - 25/18 is -59/45.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 90 × 1 = 90,
    7/90 = 7 × 1/90 × 1 = 7/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    25/18 = 25 × 5/18 × 5 = 125/90
  4. Subtract the two like fractions:
    7/90 - 125/90 = 7 - 125/90 = -118/90
  5. After reducing the fraction, the answer is -59/45

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