Question

8. Află valoarea necunoscutei:
9/9+a=7/9. 8/8-b=2/8

c-3/6=2/6

Ajutor dua coroana​

Answer 1

Răspuns:

Explicație pas cu pas:

9/9 - a = 7/9

a = 9/9 - 7/9

a = 2/9

V:   9/9 - 2/9 = ( 9 - 2 ) / 9 = 7/9

___________________________

8/8 - b = 2/8

b = 8/8 - 2/8

b = ( 8 - 2 ) / 8

b = 6/8

V:  8/8 - 6/8 = 2/8

_________________________

c - 3/6 = 2/6

c = 2/6 + 3/6

c = ( 2 + 3) /6

c = 5/6

V:   5/6 - 3/6 = 2/6