Question

Алгебра.
Задания 5, 6.

Answer 1

Ответ: 1) 8/15=8/15

2) 1.2=1.2

3) 24=24

4) 24=24

Answer 2

$5.1)\ \ \ \dfrac{1}{3}+\dfrac{1}{5}=\dfrac{5+3}{3\cdot 5}=\dfrac{8}{15}\\\\\\\dfrac{2}{3}^{|5}-\dfrac{2}{15}^{|1}=\dfrac{2\cdot 5-2}{15}=\dfrac{8}{15}\ \ \ ,\ \ \ \dfrac{8}{15}=\dfrac{8}{15}$

верно

$5.2)\ \ 40\cdot 0,03=1,2\ \ \ ,\ \ \ \ \dfrac{6}{5}=1,2\\\\{}\ \ \ \ 1,2=1,2$

верно

$6.1)\ \ 2\cdot (10-(-2))=2\cdot (10+2)=2\cdot 12=24\\\\{}\ \ \ 3\cdot (10+(-2))=3\cdot (10-2)=3\cdot 8=24\ \ \ ,\ \ \ \ 24=24\\\\{}\ \ \ 2\cdot (10-(-2))=3\cdot (10-2)$

верно

$6.2)\ \ 3\cdot (2+6)=3\cdot 8=24\\\\{}\ \ \ 2\cdot (2\cdot 6)=2\cdot 12=24\ \ \ ,\ \ \ 24=24\\\\{}\ \ \ 3\cdot (2+6)=2\cdot (2\cdot 6)$

верно