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Subtract 15/20 from 40/25

1st number: 1 15/25, 2nd number: 15/20

40/25 - 15/20 is 17/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 20 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 25 × 4 = 100,
    40/25 = 40 × 4/25 × 4 = 160/100
  3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
    15/20 = 15 × 5/20 × 5 = 75/100
  4. Subtract the two like fractions:
    160/100 - 75/100 = 160 - 75/100 = 85/100
  5. After reducing the fraction, the answer is 17/20

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