Question

Calculati:
Dau coroana și 18 puncte​

Answer 1

(³⁾17/24 + ²⁾5/36) - (³⁾5/60 - ¹⁰⁾1/18) =

= (51 + 10)/72 - (15 - 10)/180

= 61/72 - 5/180

= 61/72 - ²⁾1/36

= (61 - 2)/72

= 59/72

(4 7/9 - 1 1/2) - (³⁾15/16 - ²⁾1/24) =

= (²⁾43/9 - ⁹⁾3/2) - (45 - 3)/48

= (86 - 27)/18 - 42/48

= ⁴⁾59/18 - ⁹⁾7/8

= (236 - 63)/72

= 173/72