Proszę pomocy? Oblicz podane przykłady ( 1 cała 1/3 - 1 cała 2/9)*(1 4/5+ 9/10) ( 1 3/4 + 1/8) * ( 3 3/10 -2 29 /50) ( 1 1/2 + 2 1/10) * ( 2 1/2 - 1 3/7)

( 1 1/3 - 1 2/9) * (1 4/5 + 9/10)= (4/3 - 11/9) * (9/5 + 9/10)= = 12/9 - 11/9 * 18/10 + 9/10= 1/9 * 27/10= 3/10 (1 3/4 + 1/8) * (3 3/10 - 2 29/50)= ( 7/4 + 1/8) * (33/10 - 129/50)= = (14/8 + 1/8) * (165/50 - 129/50)= 15/8 * 36/50= 27/20= 1 7/20 (1 1/2 + 2 1/10) * (2 1/2 - 1 3/7)= ( 3/2 + 22/10) * (5/2 - 10/7)= = (15/10 + 22/10) * (35/14 - 20/14)= 37/10 * 15/14= 111/28= 3 27/28