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Subtract 18/64 from 90/50

1st number: 1 40/50, 2nd number: 18/64

90/50 - 18/64 is 243/160.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 64 is 1600

    Next, find the equivalent fraction of both fractional numbers with denominator 1600
  2. For the 1st fraction, since 50 × 32 = 1600,
    90/50 = 90 × 32/50 × 32 = 2880/1600
  3. Likewise, for the 2nd fraction, since 64 × 25 = 1600,
    18/64 = 18 × 25/64 × 25 = 450/1600
  4. Subtract the two like fractions:
    2880/1600 - 450/1600 = 2880 - 450/1600 = 2430/1600
  5. After reducing the fraction, the answer is 243/160
  6. In mixed form: 183/160

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