Question

Deschidem paranteza patrata 2,(3) inmultit cu 7,(1) inmultit cu 4,5 inchidem paranteza patrata imparit cu 1,2!!!!

Answer 1

[2,(3)*7,(1)*4,5]:1,2 =

= [(23-2)/9 * (71-7)/9 * 45/10] : 12/10 =

= (7/3 * 64/9 * 9/2) : 6/5 =

= (7/3 * 32) * 5/6 =

= 224/3 * 5/6 =

= 560/9

Answer 2

Răspuns

Explicație pas cu pas:

[2,(3) x 7,(1) x 4,5] : 1,2 =

(23-2)/9 x (71-7)/9 x 45/10 : 12/10 =

21/9 x 64/9 x 45/10 x 10/12 = (simplificam)

7/3 x 64/9 x 45/12 =

7/3 x 64/9 x 15/4 =

7/3 x 64/4 x 15/9 =

7/3 x 16 x 5/3 =

7 x 16 x 5 / 9 =

560/9 =

62,(2) sau daca vrei, fub forma de fractie ordinara, =

62 si 2/9.