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Subtract 2/90 from 42/9

1st number: 4 6/9, 2nd number: 2/90

42/9 - 2/90 is 209/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 9 × 10 = 90,
    42/9 = 42 × 10/9 × 10 = 420/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    2/90 = 2 × 1/90 × 1 = 2/90
  4. Subtract the two like fractions:
    420/90 - 2/90 = 420 - 2/90 = 418/90
  5. After reducing the fraction, the answer is 209/45
  6. In mixed form: 429/45

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