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Subtract 70/80 from 48/70

48/70 - 70/80 is -53/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 70 × 8 = 560,
    48/70 = 48 × 8/70 × 8 = 384/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    70/80 = 70 × 7/80 × 7 = 490/560
  4. Subtract the two like fractions:
    384/560 - 490/560 = 384 - 490/560 = -106/560
  5. After reducing the fraction, the answer is -53/280

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