Question

exercitiul 9 punctele d,e,f si 10 .
DAU COROANĂ!​

Answer 1

Răspuns:

Explicație pas cu pas:

d) 3/19 *3/7 +3/19* 4/7=9/(19*7)+12/(19*37)=21/(19*7)=3*19=57

e) 2/23* 3/5 -2/5*3/46=6/(23*5)- 1/5*3/23=6/(23*5)-3*(5*23)

=3/(23*5)=3/115

f) 62/11+113/22-11/2

aduc la acelasi numitor

=(124+113-121)/22=116/22=58/11