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Subtract 90/16 from 60/20

1st number: 3 0/20, 2nd number: 5 10/16

60/20 - 90/16 is -21/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 16 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 20 × 4 = 80,
    60/20 = 60 × 4/20 × 4 = 240/80
  3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
    90/16 = 90 × 5/16 × 5 = 450/80
  4. Subtract the two like fractions:
    240/80 - 450/80 = 240 - 450/80 = -210/80
  5. After reducing the fraction, the answer is -21/8

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