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Subtract 42/50 from 48/70

48/70 - 42/50 is -27/175.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 50 is 350
  2. For the 1st fraction, since 70 × 5 = 350,
    48/70 = 48 × 5/70 × 5 = 240/350
  3. Likewise, for the 2nd fraction, since 50 × 7 = 350,
    42/50 = 42 × 7/50 × 7 = 294/350
  4. Subtract the two fractions:
    240/350 - 294/350 = 240 - 294/350 = -54/350
  5. After reducing the fraction, the answer is -27/175

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