Question

Plssssssss!!!!! urgent!!!!!!!​

Answer 1

Răspuns:

1) 23/7 × 14/23 + 13/2 × 18/39 =

---- se simplifică toate fracțiile prin cel mai mare factor comun -----

⇒ 1/7 × 14 + 13/2 × 18/39 =

= 2 + 13/2 × 18/39 =

= 2 + 13 × 9/39 =

= 2 + 9/3 = 2 + 3 = 5

2) ( 1 2/3 + 35/6 ) : 45/4 =

= ( 5/3 + 35/6 ) : 45/4 =

= ( 10 + 35 / 6 ) : 45/4 =

= 45/6 × 4/45 = 15/2 × 4/45 = 15 × 2/45 = 2/3 = 0,(6)