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Subtract 15/9 from 20/5

1st number: 4 0/5, 2nd number: 1 6/9

20/5 - 15/9 is 7/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 9 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 5 × 9 = 45,
    20/5 = 20 × 9/5 × 9 = 180/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    15/9 = 15 × 5/9 × 5 = 75/45
  4. Subtract the two like fractions:
    180/45 - 75/45 = 180 - 75/45 = 105/45
  5. After reducing the fraction, the answer is 7/3
  6. In mixed form: 21/3

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