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Subtract 70/72 from 72/50

1st number: 1 22/50, 2nd number: 70/72

72/50 - 70/72 is 421/900.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 72 is 1800

    Next, find the equivalent fraction of both fractional numbers with denominator 1800
  2. For the 1st fraction, since 50 × 36 = 1800,
    72/50 = 72 × 36/50 × 36 = 2592/1800
  3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
    70/72 = 70 × 25/72 × 25 = 1750/1800
  4. Subtract the two like fractions:
    2592/1800 - 1750/1800 = 2592 - 1750/1800 = 842/1800
  5. After reducing the fraction, the answer is 421/900

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