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Subtract 25/42 from 30/8

1st number: 3 6/8, 2nd number: 25/42

30/8 - 25/42 is 265/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 42 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 8 × 21 = 168,
    30/8 = 30 × 21/8 × 21 = 630/168
  3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
    25/42 = 25 × 4/42 × 4 = 100/168
  4. Subtract the two like fractions:
    630/168 - 100/168 = 630 - 100/168 = 530/168
  5. After reducing the fraction, the answer is 265/84
  6. In mixed form: 313/84

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