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Subtract 12/72 from 49/90

49/90 - 12/72 is 17/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    49/90 = 49 × 4/90 × 4 = 196/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    12/72 = 12 × 5/72 × 5 = 60/360
  4. Subtract the two like fractions:
    196/360 - 60/360 = 196 - 60/360 = 136/360
  5. After reducing the fraction, the answer is 17/45

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