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Subtract 90/12 from 4/30

1st number: 4/30, 2nd number: 7 6/12

4/30 - 90/12 is -221/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 30 × 2 = 60,
    4/30 = 4 × 2/30 × 2 = 8/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    90/12 = 90 × 5/12 × 5 = 450/60
  4. Subtract the two like fractions:
    8/60 - 450/60 = 8 - 450/60 = -442/60
  5. After reducing the fraction, the answer is -221/30

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