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Subtract 84/60 from 70/80

1st number: 70/80, 2nd number: 1 24/60

70/80 - 84/60 is -21/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 60 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    70/80 = 70 × 3/80 × 3 = 210/240
  3. Likewise, for the 2nd fraction, since 60 × 4 = 240,
    84/60 = 84 × 4/60 × 4 = 336/240
  4. Subtract the two like fractions:
    210/240 - 336/240 = 210 - 336/240 = -126/240
  5. After reducing the fraction, the answer is -21/40

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