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Subtract 45/10 from 20/8

1st number: 2 4/8, 2nd number: 4 5/10

20/8 - 45/10 is -2/1.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 10 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    20/8 = 20 × 5/8 × 5 = 100/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    45/10 = 45 × 4/10 × 4 = 180/40
  4. Subtract the two like fractions:
    100/40 - 180/40 = 100 - 180/40 = -80/40
  5. After reducing the fraction, the answer is -2/1

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