Question

i) 7\8 : 7/8 = j) 1/3+3 ( 1/2 + 1/ 3 = sa se calculeaza​

Answer 1

Explicație pas cu pas:

i) 7/8:7/8=7/8·8/7=1

j) 1/3+3·(1/2+1/3)=1/3+3·5/6=1/3+5/2=2/6+15/6=17/6

Answer 2

Răspuns:

i)7/8:7/8=7/8x8/7                   simplificam si ramane 1/1=1

j)1/3+3(1/2+1/3)=1/3+3/1(1/2+1/3)       aducem la acelasi numitor

3/1(amplificam cu 3=9/3

si(1/2+1/3)aducem la acelasi numitor=1/2(amplificam cu 3si 1/3 cu2=3/6+2/6

deci

1/3+9/3(3/6+2/6)=simplificam cu 3 pe 1/3+9/3=3/3  si(3/6+2/6)=5/6

=3/3x5/6=15/18

Explicație pas cu pas: