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Subtract 40/50 from 21/4

1st number: 5 1/4, 2nd number: 40/50

21/4 - 40/50 is 89/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 50 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 4 × 25 = 100,
    21/4 = 21 × 25/4 × 25 = 525/100
  3. Likewise, for the 2nd fraction, since 50 × 2 = 100,
    40/50 = 40 × 2/50 × 2 = 80/100
  4. Subtract the two like fractions:
    525/100 - 80/100 = 525 - 80/100 = 445/100
  5. After reducing the fraction, the answer is 89/20
  6. In mixed form: 49/20

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