Задача Задача №2615838
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To subtract the mixed numbers \( 9 \frac{5}{7} \) and \( 3 \frac{6}{7} \), follow these steps:
Convert the mixed numbers to improper fractions.
- For \( 9 \frac{5}{7} \): \[ 9 \frac{5}{7} = \frac{(9 \times 7) + 5}{7} = \frac{63 + 5}{7} = \frac{68}{7} \]
- For \( 3 \frac{6}{7} \): \[ 3 \frac{6}{7} = \frac{(3 \times 7) + 6}{7} = \frac{21 + 6}{7} = \frac{27}{7} \]
Now subtract the improper fractions: \[ \frac{68}{7} - \frac{27}{7} = \frac{68 - 27}{7} = \frac{41}{7} \]
Convert \( \frac{41}{7} \) back to a mixed number:
- Divide 41 by 7. The quotient is 5 and the remainder is 6.
- So, \( \frac{41}{7} = 5 \frac{6}{7} \).
Thus, \( 9 \frac{5}{7} - 3 \frac{6}{7} = 5 \frac{6}{7} \).