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Subtract 45/20 from 42/6

1st number: 7 0/6, 2nd number: 2 5/20

42/6 - 45/20 is 19/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 6 × 10 = 60,
    42/6 = 42 × 10/6 × 10 = 420/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    45/20 = 45 × 3/20 × 3 = 135/60
  4. Subtract the two like fractions:
    420/60 - 135/60 = 420 - 135/60 = 285/60
  5. After reducing the fraction, the answer is 19/4
  6. In mixed form: 43/4

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