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Subtract 3/21 from 70/36

1st number: 1 34/36, 2nd number: 3/21

70/36 - 3/21 is 227/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 21 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 36 × 7 = 252,
    70/36 = 70 × 7/36 × 7 = 490/252
  3. Likewise, for the 2nd fraction, since 21 × 12 = 252,
    3/21 = 3 × 12/21 × 12 = 36/252
  4. Subtract the two like fractions:
    490/252 - 36/252 = 490 - 36/252 = 454/252
  5. After reducing the fraction, the answer is 227/126
  6. In mixed form: 1101/126

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