Question

calculati :3supra5×10supra9+5supra6 b) 4supra57(3supra4+5supra6), c) (13supra3-2supra6)×9supra8.

Answer 1

a)3/5×10/9+5/6=30/45(aplf. cu 2)+5/6(aplf cu 15)=60/90 +75/90=135 /90(splf. cu 45 )=3/2
b)4/75 (3/4 (ampf cu 3)+5/6 (a cu 2)=4/75 (9/12×10/12)=4/75 ×19/12=1/9
c)(13/3(a cu 2)-2/6)×9/8 =(26/6-2/6 )×9/8 =24/6×9/8 =9/2
Sper ca te-am ajutat :) Succes în continuare! ♡

Answer 2

3 / 5 x 10 / 9 + 5/6= 2/3 + 5/6 = 4/6+ 5/6 = 9/6=3/2=1,5

b)  4/57 ( 3 / 4 +5/6) = 4/57 ( 9/12+ 10/12)=4/57 x   19 /12= 19/ 57x3= 19 / 171
=  1/9

c)  ( 13/3 - 1/3) x 9/8= 12/3 x 9/8 = 9/2=4,5