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Subtract 18/49 from 40/20

1st number: 2 0/20, 2nd number: 18/49

40/20 - 18/49 is 80/49.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 49 is 980
  2. For the 1st fraction, since 20 × 49 = 980,
    40/20 = 40 × 49/20 × 49 = 1960/980
  3. Likewise, for the 2nd fraction, since 49 × 20 = 980,
    18/49 = 18 × 20/49 × 20 = 360/980
  4. Subtract the two fractions:
    1960/980 - 360/980 = 1960 - 360/980 = 1600/980
  5. After reducing the fraction, the answer is 80/49
  6. In mixed form: 131/49

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