Question

(5/6 + 1/3) : (8/3 - 1,75)=

(107/6 - 15,75)+b=3,5

b=

2,5 * 9/2 - 117/20 : 0,9=

Answer 1

5/6+1/3):(8/3-1 3/4=(5/6+2/6):(8/3-7/4)=7/6:(32/12-21/12)=7/6:11/12=7/6x12/11=14/11=1 3/11

 

(107/6-15 3/4)+b=3 1/2

107/6 - 63/4 +b=7/2

214/12-189/12+b=7/2

25/12+b=7/3

b=7/2-25/12

b=42/12-25/12

b=17/12

b=1 5/12

 

 

2,5x9/2-117/20:0,9= 2 1/2x9/2-117/20:9/10= 5/2x9/2-117/20x10/9= 45/4-13/2= 45/4-26/4=19/4= 4 3/4