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Subtract 42/10 from 56/70

1st number: 56/70, 2nd number: 4 2/10

56/70 - 42/10 is -17/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 10 is 70
  2. For the 1st fraction, since 70 × 1 = 70,
    56/70 = 56 × 1/70 × 1 = 56/70
  3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
    42/10 = 42 × 7/10 × 7 = 294/70
  4. Subtract the two fractions:
    56/70 - 294/70 = 56 - 294/70 = -238/70
  5. After reducing the fraction, the answer is -17/5

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