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Subtract 15/30 from 42/8

1st number: 5 2/8, 2nd number: 15/30

42/8 - 15/30 is 19/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 30 is 120
  2. For the 1st fraction, since 8 × 15 = 120,
    42/8 = 42 × 15/8 × 15 = 630/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    15/30 = 15 × 4/30 × 4 = 60/120
  4. Subtract the two fractions:
    630/120 - 60/120 = 630 - 60/120 = 570/120
  5. After reducing the fraction, the answer is 19/4
  6. In mixed form: 43/4

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