Question

1) 2 2/11×1 3/8:3/4=2)11/23×3 2/7:5 1/2=3)5/7-2/3):(4/9-5/12)=​

Answer 1

Ответ:

=6,11

=16,8

=19,13

Пошаговое объяснение:

Вроде верно)

Answer 2

Sure, let's solve each of the given expressions step by step:

1) $\frac{2 \frac{2}{11} \times 1 \frac{3}{8}}{\frac{3}{4}}$

First, convert the mixed numbers to improper fractions:

$2 \frac{2}{11} = \frac{24}{11}$
$1 \frac{3}{8} = \frac{11}{8}$

Now, multiply the numerators and denominators:

Numerator: $24 \times 11 = 264$
Denominator: $11 \times 8 = 88$

So, the expression becomes:

$\frac{\frac{264}{88}}{\frac{3}{4}}$

Now, multiply by the reciprocal of $\frac{3}{4}$:

$\frac{\frac{264}{88} \times \frac{4}{3}}{1} = \frac{264}{66}$

Divide the numerator by the denominator:

$\frac{264}{66} = 4$

2) $\frac{\frac{11}{23} \times \frac{3}{2}}{5 \frac{1}{2}}$

Convert the mixed number to an improper fraction:

$5 \frac{1}{2} = \frac{11}{2}$

Now, multiply the numerators and denominators:

Numerator: $11 \times 3 = 33$
Denominator: $23 \times 2 = 46$

So, the expression becomes:

$\frac{\frac{33}{46}}{\frac{11}{2}}$

Now, multiply by the reciprocal of $\frac{11}{2}$:

$\frac{\frac{33}{46} \times \frac{2}{11}}{1} = \frac{6}{46}$

Reduce the fraction:

$\frac{6}{46} = \frac{3}{23}$

3) $\frac{\frac{5}{7} - \frac{2}{3}}{\frac{4}{9} - \frac{5}{12}}$

Find a common denominator for both fractions in the numerator and denominator:

Numerator:
$\frac{5}{7} \times \frac{3}{3} = \frac{15}{21}$
$\frac{2}{3} \times \frac{7}{7} = \frac{14}{21}$

Denominator:
$\frac{4}{9} \times \frac{4}{4} = \frac{16}{36}$
$\frac{5}{12} \times \frac{3}{3} = \frac{15}{36}$