Question

Oblicz:
a) 5 4/6+ (3 11/18 -1 2/3)=
b) 4 8/11 - 3 3/8 +2 9/33=
c) 2 3/7 + 4 3/9 -1 12/14=
(czytamy to tak np. 5 i cztery szóstych)

Answer 1

a) 5 i 4/6+( 3 i 11/8-1 i 2/3)=5 i 12/18+( 3 i 11/18- 1 i 12/18)= 5 i 12/18+( 2 i 29/18 - 1 i 12/18)= 5 i 12/18+ 1 i 17/18= 6 i 29/18=7 i 11/18
b) 4 i 8/11- 3 i 3/8 + 2 i 9/33= 4 i 8/11- 3 i 3/8 +2 i 3/11= 4 i 64/88- 3 i 33/88+ 2 i 24/88= 1 i 31/88+ 2 i 24/88= 3 i 55/88
c) 2 i 3/7+ 4 i 3/9- 1 i 12/14= 2 i 3/7+4 i 1/3- 1 i 6/7= 2 i 9/21+ 4 i 7/21- 1 i 18/21= 6 i 16/21- 1 i 18/21=5 i 40/21- 1 i 18/21=4 i 22/21= 5 i 37/21- 1 i 18/21= 4 i 19/21