Question

Ajutor va rog......dau coroana​

Answer 1

Răspuns:

a.

5/2= 5X5/2x5= 25/10

2/5= 2x2/5x2= 4/10;

7/4= 7x5x5/4 x5 x5= 175/100= 175/10 la a 2-a

9/20 = 9 x5/20x5= 45/100= 45/10 la a -2-a

35/4 = 35x5x5/4x5x5= 875/100= 875/10 la a2-a

b.

15/8 = 15 x5x5x5/8x5x5x5= 1875/1000 = 1875/10 la a 3-a

3/25= 3/5x5x5= 3x2x2x2/5x5x5x2x2x2= 24/1000 = 24/10 la a 3-a

11/125 = 11/5x5x5= 11x2x2x2/5x5x5x2x2x2= 88/1000 = 88/10 la puterea a3-a

21/40 = 21/ 2x2x2x5= 21x 5 x5/2x2x2x5x5x5= 525/1000 = 525/10 la a 3-a

3/16 = 3/2x2x2x2= 3x5x5x5x5/2x2x2x2x5x5x5x5= 1875/10 000 = 1875/10 la a4-a

Explicație pas cu pas: