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a w mianowniku :
14:1 i 3/4 +2 i 1/3 :7/9 - 5 i 7/12
rozwiązuję licznik
{ 2 i 1/3 - [ 4 i 1/2 - 1 i 2/3 ]:5 i 2/3 + 1/3]} :3/4 =
= { 7/3 -[ 9/2 -5/3] : 17/3 + 1/3]} : 3/4=
= {7/3 -[ 27/6 - 10/6] *3/17 + 1/3 ]} : 3/4 =
= { 7/3 - [17/6]*3/17 + 1/3 ]} * 4/3=
= { 7/3 - 1/2 + 1/3 ]} *4/3=
= { 14/6 - 3/6 + 2/6]} *4/3=
= 13/6 *4/3=
= 26/9
Rozwiazuję mianownik
14:1 i 3/4 +2 i 1/3 :7/9 - 5 i 7/12 =
=14 *4/7 + 7/3*9/7 - 67/12=
= 8 + 3 - 67/12=
= 11 - 67/12=
= 132/12 - 67/12=
= 65/12
Obliczam cały ułamek
26/9 :65/12=
= 26/9 *12/65=
= 8/15