Question

ex 6 b d f g repede dau coroana și inima

Answer 1

b) (2x7)+1/7=15/7

(4x6)+1/6=25/6

(2x3)+1/3=7/3

=> 15/7:25/6x7/3=15/7x6/25x7/3=6/5

d) (3x3)+1/3=10/3

(2x4)+3/4=11/4

(5x2)+1/2=11/2

=>10/3(11/4:11/2)

=10/3(11/4x2/11)

=10/3x1/2=5/3

f) (6x5)+1/5=31/5

(4x3)+1/3=13/3

(1x3)+1/3=4/3

=>(31/5-13/3):4/3

(93-65/3)x3/4

28/3x3/4=7

g) (1x8)+3/8=11/8

(2x6)+5/6=17/6

=> (11/8+17/6)x72/5

(66+136/48)x72/5

202/48x72/5=303/5