Question

Срочно) 1) 5+4 1/5*(-1 4/7) 2) - 5 2/3 : 4 1/4 - 5 1/3 : 7/8 3)2 3/5 * 7/11 + 4 2/11 : (-5 3/4) 4) 5/7 - (5 1/4 - 2 1/7 : 1 1/4) 5)3 47/59 - 3 47/59 _______________ 2 1/17 : 1 16/17

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Sure, let's solve these expressions step by step:

1. $5 + \frac{4}{5} \times (-1 \frac{4}{7})$

To simplify the expression inside the parentheses, convert the mixed number $-1 \frac{4}{7}$ to an improper fraction:

$-1 \frac{4}{7} = -\frac{11}{7}$

Now, multiply $\frac{4}{5}$ by $-\frac{11}{7}$:

$\frac{4}{5} \times (-\frac{11}{7}) = -\frac{44}{35}$

Finally, add 5 to $-\frac{44}{35}$:

$5 + (-\frac{44}{35}) = \frac{161}{35} \approx 4.6$

2. $-\frac{5 \frac{2}{3}}{4 \frac{1}{4}} - \frac{5 \frac{1}{3}}{\frac{7}{8}}$

To perform the division, convert the mixed numbers to improper fractions:

$-\frac{17}{3} \div \frac{17}{4} - \frac{16}{3} \div \frac{7}{8}$

Remember, when dividing fractions, you flip the second fraction and then multiply:

$-\frac{17}{3} \times \frac{4}{17} - \frac{16}{3} \times \frac{8}{7}$

Now, perform the multiplications:

$-\frac{4}{3} - \frac{128}{21}$

To subtract these fractions, find a common denominator, which is 21:

$-\frac{28}{21} - \frac{128}{21} = -\frac{156}{21} = -\frac{52}{7}$

3. $2 \frac{3}{5} \times \frac{7}{11} + \frac{4 \frac{2}{11}}{-5 \frac{3}{4}}$

First, convert the mixed numbers to improper fractions:

$2 \frac{3}{5} = \frac{13}{5}$

$4 \frac{2}{11} = \frac{46}{11}$

$-5 \frac{3}{4} = -\frac{23}{4}$

Now, perform the calculations:

$\frac{13}{5} \times \frac{7}{11} + \frac{46}{11} \div (-\frac{23}{4})$

$\frac{91}{55} + \frac{46}{11} \div (-\frac{23}{4})$