7. Oblicz:
1 3/5-(5/8 *0.8 +1 3/5) :2​



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Odpowiedź :

Byuryo

1 3/5 - (5/8 * 0,8 + 1 3/5) : 2 = 8/5 - ( 5/8 * 4/5 + 8/5 ) : 2 = 8/5 - ( 1/2 + 8/5) : 2 = 8/5 - (5/10 + 16/10) : 2 = 8/5 - 21/10 : 2 = 8/5 - 21/20 = 32/20 - 21/20 = 11/20

Liczę na naj ^^

Odpowiedź:

3/5 - (5/8 * 0,8 + 1 i 3/5) : 2= 3/5 - ( 5/8 * 8/10 + 1 i 3/5) : 2 = 3/5 - (1/2 + 1 i 3/5) : 2 = 3/5 - (5/10 + 1 i 6/10) ; 2 = 3/5 - 1 i 11/10 : 2 = 3/5 - 21/10 * 1/2 = 3/5 - 21/20 = 12/20 - 21/20 = -9/20