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Subtract 15/42 from 42/8

1st number: 5 2/8, 2nd number: 15/42

42/8 - 15/42 is 137/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 42 is 168
  2. For the 1st fraction, since 8 × 21 = 168,
    42/8 = 42 × 21/8 × 21 = 882/168
  3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
    15/42 = 15 × 4/42 × 4 = 60/168
  4. Subtract the two fractions:
    882/168 - 60/168 = 882 - 60/168 = 822/168
  5. After reducing the fraction, the answer is 137/28
  6. In mixed form: 425/28

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