Odpowiedź :
Odpowiedź:
Zad. 1) .
a) 3/4 × 4/5 = 12/20 = 3/5
b) 415 × 5/12 = 20/180 = 1/9
c) 7/9 × 7/11 = 49/ 99
Zad. 2)
a) 5/6 × 1 1/5 = 5/6 × 6/5= 30/30 = 1
b) 1 2/3 × 3 4/5 = 5,/3 × 19/5 = 95/15 = 6 5/15 = 6 1/3
c) 1 5/7 × 14/15 = 12 /7 × 14/7 = 8 /5 = 1 3/5
Zad 1
a) 3/4 * 4/5 = 12/20 = 3/5
b) 415 *5/12 = 20/180 = 1/9
c) 7/9 * 7/11 = 49/ 99
Zad 2
a) 5/6 * 1 1/5 = 5/6 * 6/6 = 30/6 = 5
b) 1 2/3 * 3 4/5 = 5,/3 * 19/4 = 95 /12 = 7 11/12
c) 1 5/7 * 14/15 = 12 /7 * 14/7 = 8 /5 = 1 3/5
pisze jeszcze raz ze skracaniem bo tamtą odpowiedź usuneli