Question

1/3 razy 5,1 +3 podzielić 1/3 21,7 razy 1/7- 3/7razy 0,5 razy 1/6

Answer 1

1/3 * 5,1 :  1/3 = 1/3 * 5 i 1/10 +  3/1 : 1/3 = 1/3  * 51/10 + 3/1 : 1/3 = 51/10 + 3/1 *3/1 = %1/30 + 6/1 = 51/30 + 6 = 6 i 51/30 = 7 i 21/30 = 7 i 7/10.  

 

21,7 * 1/7 - 3/7 * 0.5 * 1.6 = 21i 7/10 * 1/7 - 3/7 * 0,5 * 1,6 = 217/10 * 1/7 ( po skróceniu 31/10 *1/1 ) - 3/7 * 0,5 * 1,6 = 31/10 - 3/7 * 1/2 * 1 i 6/10 = 31/10 - 18/140= 434/140 - 18/140 = 416/140=2 i 136/140 = 2 i 34/35 

 

 

to chyba tak XD