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Subtract 45/10 from 21/60

1st number: 21/60, 2nd number: 4 5/10

21/60 - 45/10 is -83/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 10 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 60 × 1 = 60,
    21/60 = 21 × 1/60 × 1 = 21/60
  3. Likewise, for the 2nd fraction, since 10 × 6 = 60,
    45/10 = 45 × 6/10 × 6 = 270/60
  4. Subtract the two like fractions:
    21/60 - 270/60 = 21 - 270/60 = -249/60
  5. After reducing the fraction, the answer is -83/20

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