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Subtract 3/48 from 42/20

1st number: 2 2/20, 2nd number: 3/48

42/20 - 3/48 is 163/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 48 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 20 × 12 = 240,
    42/20 = 42 × 12/20 × 12 = 504/240
  3. Likewise, for the 2nd fraction, since 48 × 5 = 240,
    3/48 = 3 × 5/48 × 5 = 15/240
  4. Subtract the two like fractions:
    504/240 - 15/240 = 504 - 15/240 = 489/240
  5. After reducing the fraction, the answer is 163/80
  6. In mixed form: 23/80

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