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Subtract 4/5 from 42/8

1st number: 5 2/8, 2nd number: 4/5

42/8 - 4/5 is 89/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 5 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    42/8 = 42 × 5/8 × 5 = 210/40
  3. Likewise, for the 2nd fraction, since 5 × 8 = 40,
    4/5 = 4 × 8/5 × 8 = 32/40
  4. Subtract the two like fractions:
    210/40 - 32/40 = 210 - 32/40 = 178/40
  5. After reducing the fraction, the answer is 89/20
  6. In mixed form: 49/20

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