Question

am nevoie de ajutor!

Answer 1

Răspuns:

a) (2·3+2)/3·(1·4+2)/4-6/5·5/4·2/3=

8/3·6/4-6/5·5/4·2/3=

6-60/60=

6-1=5

b) 10/3·6/5+5/4:5/3·4/3=

4+5/4·3/5·4/3=

4+60/60=

4+1=5

c) 3/7·(8/5·5/2-5/4·4/3)=

3/7·(40/10-20/12)=

3/7·(³⁾4-5/3)=

3/7·(12/3-5/3)=

3/7·7/3=21/21=1

d) (21/4-14/4·8/7):5/3=

(21/4-⁴⁾4)·3/5=

(21/4-16/4)·3/5=

5/4·3/5=(15/20)⁽⁵=3/4