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Subtract 70/90 from 72/50

1st number: 1 22/50, 2nd number: 70/90

72/50 - 70/90 is 149/225.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 90 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 50 × 9 = 450,
    72/50 = 72 × 9/50 × 9 = 648/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    70/90 = 70 × 5/90 × 5 = 350/450
  4. Subtract the two like fractions:
    648/450 - 350/450 = 648 - 350/450 = 298/450
  5. After reducing the fraction, the answer is 149/225

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