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Subtract 15/20 from 80/35

1st number: 2 10/35, 2nd number: 15/20

80/35 - 15/20 is 43/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 35 × 4 = 140,
    80/35 = 80 × 4/35 × 4 = 320/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    15/20 = 15 × 7/20 × 7 = 105/140
  4. Subtract the two like fractions:
    320/140 - 105/140 = 320 - 105/140 = 215/140
  5. After reducing the fraction, the answer is 43/28
  6. In mixed form: 115/28

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