Răspuns:
Explicație pas cu pas:
a)
3/4+1/2⁽²*4⁽²/5
= ⁵⁾3/4+⁴⁾2/5
= 15/20+8/20
= 23/20
b)
2¹/₃=(2*3+1)/3=7/3
7/3+3⁽³/4*7/3⁽³=
= ⁴⁾7/3+³⁾7/4
= 28/12+21/12
= 49/12
-
c)
(5/6+²⁾1/3)*6/7
=(5/6+2/6)*6/7
= 7⁽⁷/6⁽⁶*6⁽⁶/7⁽⁷
= 1
-
d)
17/4-2⁽²/3⁽³*3⁽³/4⁽²*15/7=
= ⁷⁾17/4 -⁴⁾15/7
= 119/28-60/28
= 59/28
