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Subtract 20/15 from 5/10

1st number: 5/10, 2nd number: 1 5/15

5/10 - 20/15 is -5/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 15 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 10 × 3 = 30,
    5/10 = 5 × 3/10 × 3 = 15/30
  3. Likewise, for the 2nd fraction, since 15 × 2 = 30,
    20/15 = 20 × 2/15 × 2 = 40/30
  4. Subtract the two like fractions:
    15/30 - 40/30 = 15 - 40/30 = -25/30
  5. After reducing the fraction, the answer is -5/6

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