Question

Gente pfv me ajudem!! Essa é a última questão que eu tenho

Answer 1

a) 2 : 1/2 - 1/2=

   4/1 - 1/2=

  8/2 - 1/2= 7/2

b) 4/15 : 2/5 + 3 . 3/4=

   20/30 + 9/4=

   40/60 + 135/60= 175/60= 35/12

c) 2/3 . 3/4 - 1/6=

   6/12 - 1/6=

   6/12 - 2/12= 4/12= 1/3

d) 2/3 + (6/5 + 3/10)=

   20/30 + (36/30 + 9/30)=

   20/30 + 45/30= 65/30= 13/6

e) (2 + 1/2 + 1/8) : 3/8 + 1=

   (16/8 + 4/8 + 1/8) : 3/8 + 8/8=

   (20/8 + 1/8) : 3/8 + 8/8=

   21/8 : 3/8 + 8/8=

   168/24 + 8/8= 176/8 = 22

f) (1 + 2/3)² - (1 - 2/3)²=

   (3/3 + 2/3)² - (3/3 - 2/3)²=

   (5/3)² - (1/3)²=

   25/9 - 1/9= 24/9= 8/3

g) (2 - V1/9)²=

   (2 - 1/3)²=

   (9/3 - 1/3)²=

   8/3²= 64/9