Question

trebuie rezolvări complete.Dau coroană​.Vă rog frumos.Este cineva dispus să mă ajute?!

Answer 1

Răspuns:

1)

a) 1 b)2 c) 1/4 d) 1/2 e)10/3 f) 21/9 g)17/3 h) 1/5 i)11/3 j)15/9 k)84/15 l)1/2

Explicație pas cu pas:

1)e) (4*3+2)/3-(1*3+1)/3=14/3-4/3=10/3

f) (4*9+5)/9-(2*9+2)/9=21/9

g) (7*15+11)/15-(2*15+1)/15=116/15-31/15=85/15=17/3

h) (9*20+11)/20-(9*20+7)/20=(180+11-180-7)/20=4/20=1/5..etc.

2)

a) 7/6- 2)2/3=7/6-4/6=3/6=1/2

b)36/15- 3)7/5=15/15=1

c)17/12-2)7/6=3/12=1/4

d)25/18- 2)5/9=15/18=5/6

e) (4*3+1)/3-(1*6+1)/6=2)13/3-7/6=19/6

f)(3*18+5)/18-(2*9+1)/9=59/18-2)19/9=21/18

g) (7*15+11)/15-(2*5+1)/5=115/15-3)11/5=82/15

h)(9*4+3)/4-(9*20+7)/20=5)39/4-187/20=195/20-187/20=8/20=2/5

i)(5*6+5)/6-(1*3+1)/3=35/6-2)4/3=27/6=9/2

j)(8*9+8)/9-(2*3+2)/3=80/9-3)8/3=56/9

k)(7*15+11)/15-(7*5+2)/5=116/15-3)37/5=5/15=1/3

l) (9*24+17)/24-(9*4+1)/4=233/24-6)37/4=11/37