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Subtract 16/90 from 18/25

18/25 - 16/90 is 122/225.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 90 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 25 × 18 = 450,
    18/25 = 18 × 18/25 × 18 = 324/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    16/90 = 16 × 5/90 × 5 = 80/450
  4. Subtract the two like fractions:
    324/450 - 80/450 = 324 - 80/450 = 244/450
  5. After reducing the fraction, the answer is 122/225

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