Question

Va rog doar A si B dau coroana​

Answer 1

Răspuns:

a) 7/3 / 15/10 = 3x/9

7/3 × 10/15 = 3x/9

70/45 = 3x/9

=> x = 70 × 9/45 ×3

x = 70/15*⁵ = 14/3

b) x-2 = 25/10 × 10/143 / 10

= 25/143 / 10

= 25/143 × 1/10

= 25/1430*⁵

= 5/286 + *²⁸⁶2/1

= 5/286 + 572/286

= 577/286