Решите 2 1/7 : 4 1/6 * 2 1/3; (7 1/3 + 2 1/4) : 1/4 - 30 5/6. Created by Arinka026. matematika-ru

6...

Pelageya

Verified answer

Решение прикреплено...........................

10 votes Thanks 10

Emmie1

Verified answer

$2 \frac{1}{7} :4 \frac{1}{6} *2 \frac{1}{3} = \frac{15}{7} : \frac{25}{6} * \frac{7}{3} = \frac{15*6*7}{7*25*3}= \frac{6}{5}=1 \frac{1}{5}$
$(7 \frac{1}{3} +2 \frac{1}{4} ): \frac{1}{4} -30 \frac{5}{6} =( \frac{22}{3} + \frac{9}{4}): \frac{1}{4} - \frac{185}{6} =( \frac{22*4+9*3}{12}): \frac{1}{4}- \frac{185}{6} = \\ 
 =\frac{115*4}{12*1} - \frac{185}{6}= \frac{115}{3} - \frac{185}{6} = \frac{115*2-185}{6} = \frac{45}{6}= \frac{15}{2} =7 \frac{1}{2}$

4 votes Thanks 7

Answers & Comments

Verified answer

Verified answer

najdite znachenie vyrazheniya ispolzovav raspredelitelnye svojstvo a 179 47

reshite uravnenie a 39 x 4 07 b 6 x 15 252 v 26 7x

50...

najdite znachenie vyrazheniya a 7845a pri a 01 a 001 a 0001 b x v kvad

6 raza najdite dlinu otrezkov ac i cb esli ab 78 mm

3...

6...

3 raza menshe cherez skolko vremeni rasstoyanie mezhdu nimi budet ravno 4 km

9 ugla kcd

5...

рекомендуемые вопросы

Helpful Links

Helpful Social