Question

rozwiąż przykłady.

a. (2 i 7/8 + 2 i 1/8 ) : ( 6 i 5/10 - 1 i 1/3 ) =

b. 233 - 3 * (9 i 8/10 - 4/5 ) * (6 i 5/10 - 6 i 1/2) =

c. 5 i 25/100 - 1 i 1/3 * ( 2- 4/10 * 5/6) : 6 i 2/9 =

za rozwiązanie z gory dziękuje !!! ;)

Answer 1

a. (2 i 7/8 + 2 i 1/8 ) : ( 6 i 5/10 - 1 i 1/3 ) =(28/8+9/8):(65/10-4/3)=31/8:(195/30-40/30)=31/8:155/30=31/8*30/155=465/620=93/124

b. 233 - 3 * (9 i 8/10 - 4/5 ) * (6 i 5/10 - 6 i 1/2) =233-3(98/10-8/10)*(65/10-65/10)=233-294/10-24/10=233-27=206

c.  5 i 25/100 - 1 i 1/3  * ( 2- 4/10 * 5/6) : 6 i 2/9 = 525/100-4/3*(2-1/3):5/9=525/100-4/3*5/3:56/9=525/100-20/9*5/56=525/100-5/14=7350/1400-500/1400=6850/1400=4 i 125/140=4 i  25/28