Question

Efectuati calculele si scrieti rezultatul sub forma de fractie ireductibila a) 3/2▪︎5/9 ; b) 6/5▪︎7/3 ; c) 11/6 ▪︎3/22 ; d) 2 2/3▪︎5/16 ; e) 3 1/6▪︎0. f) 1/2▪︎8/3▪︎9/4 ; g) 3/5▪︎10/7▪︎28/9 ; h) 1/4▪︎16/15▪︎2 6/7 ; i) 4 2/9▪︎3/19▪︎6; j) 7/7▪︎3 1/8▪︎32. va rogg dau coroana ​

Answer 1

Răspuns:

Explicație pas cu pas:

Efectuati calculele si scrieti rezultatul sub forma de fractie ireductibila

a) 3/2▪︎5/9 =(3▪︎5)/(2▪︎9)=5/(2▪︎3)=5/6

b) 6/5▪︎7/3 =(6▪︎7)/(5▪︎3)=(2▪︎7)/5=14/5

c) 11/6 ▪︎3/22 =(11▪︎3)/(6▪︎22)=3/(6▪︎2)=1/(2▪︎2)=1/4

d) 2 2/3▪︎5/16 =(2▪︎3+2)/3▪︎5/16=8/3▪︎5/16=(8▪︎5)/(3▪︎16)=5/(3▪︎2)=5/6

e) 3 1/6▪︎0=0 (rezultatul inmultirii unui numar cu 0 este 0)

f) 1/2▪︎8/3▪︎9/4 =(1▪︎8▪︎9)/(2▪︎3▪︎4)=(4▪︎9)/(3▪︎4)=9/3=3

g) 3/5▪︎10/7▪︎28/9 =(3▪︎10▪︎28)/(5▪︎7▪︎9)=(10▪︎28)/(5▪︎7▪︎3)=(10▪︎4)(5▪︎3)=(2▪︎4)/3=8/3

h) 1/4▪︎16/15▪︎2 6/7 =1/4▪︎16/15▪︎(2▪︎7+6)/7=1/4▪︎16/15▪︎20/7=(1▪︎16▪︎20)/(4▪︎15▪︎7)=

(4▪︎20)/(15▪︎7)=(4▪︎4)/(3▪︎7)=16/21

i) 4 2/9▪︎3/19▪︎6 =(4▪︎9+2)/9▪︎3/19▪︎6=38/9▪︎3/19▪︎6=(38▪︎3▪︎6)/(9▪︎19)=(2▪︎3▪︎6)/9=

(2▪︎6)/3=(2▪︎2)=4

j) 7/7▪︎3 1/8▪︎32 =7/7▪︎(3▪︎8+1)/8▪︎32=1▪︎25/8▪︎32=(1▪︎25▪︎32)/8=25▪︎4=100