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Subtract 70/15 from 49/20

1st number: 2 9/20, 2nd number: 4 10/15

49/20 - 70/15 is -133/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 15 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    49/20 = 49 × 3/20 × 3 = 147/60
  3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
    70/15 = 70 × 4/15 × 4 = 280/60
  4. Subtract the two like fractions:
    147/60 - 280/60 = 147 - 280/60 = -133/60

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