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Subtract 90/50 from 7/4

1st number: 1 3/4, 2nd number: 1 40/50

7/4 - 90/50 is -1/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 50 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 4 × 25 = 100,
    7/4 = 7 × 25/4 × 25 = 175/100
  3. Likewise, for the 2nd fraction, since 50 × 2 = 100,
    90/50 = 90 × 2/50 × 2 = 180/100
  4. Subtract the two like fractions:
    175/100 - 180/100 = 175 - 180/100 = -5/100
  5. After reducing the fraction, the answer is -1/20

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