Question

1) 3 8/9×(-2 1/7) 2) 8 1/6×(-7 1/5) 3) 6 3/8×(-2 6/11)​

Answer 1

Ответ:

вроде бы так если я всё праильно поняла

1) ответ: -8целых 1/3

2) ответ: -58целых 4/5

3)ответ -16целых 5/22

Пошаговое объяснение:

Answer 2

Sure, I can help you with these multiplication calculations involving mixed numbers. Let's solve each of them step by step:

1. $3 \frac{8}{9} \times (-2 \frac{1}{7})$:

First, convert the mixed numbers into improper fractions: $3 \frac{8}{9} = \frac{3 \cdot 9 + 8}{9} = \frac{27 + 8}{9} = \frac{35}{9}$ $-2 \frac{1}{7} = -\frac{2 \cdot 7 + 1}{7} = -\frac{14 + 1}{7} = -\frac{15}{7}$

Now multiply the fractions: $\frac{35}{9} \times -\frac{15}{7} = \frac{35 \times -15}{9 \times 7} = \frac{-525}{63}$

Simplify the fraction: $\frac{-525}{63} = -\frac{525}{63} = -\frac{25}{3}$

2. $8 \frac{1}{6} \times (-7 \frac{1}{5})$:

Convert the mixed numbers into improper fractions: $8 \frac{1}{6} = \frac{8 \cdot 6 + 1}{6} = \frac{48 + 1}{6} = \frac{49}{6}$ $-7 \frac{1}{5} = -\frac{7 \cdot 5 + 1}{5} = -\frac{35 + 1}{5} = -\frac{36}{5}$

Multiply the fractions: $\frac{49}{6} \times -\frac{36}{5} = \frac{49 \times -36}{6 \times 5} = \frac{-1764}{30}$

Simplify the fraction: $\frac{-1764}{30} = -\frac{1764}{30} = -\frac{294}{5}$

3. $6 \frac{3}{8} \times (-2 \frac{6}{11})$:

Convert the mixed numbers into improper fractions: $6 \frac{3}{8} = \frac{6 \cdot 8 + 3}{8} = \frac{48 + 3}{8} = \frac{51}{8}$ $-2 \frac{6}{11} = -\frac{2 \cdot 11 + 6}{11} = -\frac{22 + 6}{11} = -\frac{28}{11}$

Multiply the fractions: $\frac{51}{8} \times -\frac{28}{11} = \frac{51 \times -28}{8 \times 11} = \frac{-1428}{88}$