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Subtract 42/10 from 49/8

1st number: 6 1/8, 2nd number: 4 2/10

49/8 - 42/10 is 77/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 10 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    49/8 = 49 × 5/8 × 5 = 245/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    42/10 = 42 × 4/10 × 4 = 168/40
  4. Subtract the two like fractions:
    245/40 - 168/40 = 245 - 168/40 = 77/40
  5. In mixed form: 137/40

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