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Subtract 70/9 from 6/7

1st number: 6/7, 2nd number: 7 7/9

6/7 - 70/9 is -436/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 9 is 63
  2. For the 1st fraction, since 7 × 9 = 63,
    6/7 = 6 × 9/7 × 9 = 54/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    70/9 = 70 × 7/9 × 7 = 490/63
  4. Subtract the two fractions:
    54/63 - 490/63 = 54 - 490/63 = -436/63

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