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Subtract 45/20 from 50/35

1st number: 1 15/35, 2nd number: 2 5/20

50/35 - 45/20 is -23/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 20 is 140
  2. For the 1st fraction, since 35 × 4 = 140,
    50/35 = 50 × 4/35 × 4 = 200/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    45/20 = 45 × 7/20 × 7 = 315/140
  4. Subtract the two fractions:
    200/140 - 315/140 = 200 - 315/140 = -115/140
  5. After reducing the fraction, the answer is -23/28

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