Odpowiedź:
3. A) 1/4 + 0,94 = 0,25 + 0,94 = 1,19
B) 2 1/6 + 2,2 = 2 1/6 + 2 2/10 = 2 5/30 + 2 6/30 = 4 11/30
C) 2,45 - 1 2/5 = 2,45 - 1,4 = 1,05
D) 3 1/3 - 1,6 = 3 1/3 - 1 6/10 = 3 10/30 - 1 18/30 = 1 22/30
E) 4/9* 0,09 = 4/9 * 9/100 = 4/100 = 0,04
F) 2,5 * 1 3/5 = 2,5 * 1,6 = 4
G) 3,6 : 1 4/5 = 3,6 : 1,8 = 2
H) 2 1/3 : 1,4 = 2 1/3 : 1 4/10 = 7/3 * 10/14 = 10/6 = 1 4/6 = 1 2/3
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Odpowiedź:
3. A) 1/4 + 0,94 = 0,25 + 0,94 = 1,19
B) 2 1/6 + 2,2 = 2 1/6 + 2 2/10 = 2 5/30 + 2 6/30 = 4 11/30
C) 2,45 - 1 2/5 = 2,45 - 1,4 = 1,05
D) 3 1/3 - 1,6 = 3 1/3 - 1 6/10 = 3 10/30 - 1 18/30 = 1 22/30
E) 4/9* 0,09 = 4/9 * 9/100 = 4/100 = 0,04
F) 2,5 * 1 3/5 = 2,5 * 1,6 = 4
G) 3,6 : 1 4/5 = 3,6 : 1,8 = 2
H) 2 1/3 : 1,4 = 2 1/3 : 1 4/10 = 7/3 * 10/14 = 10/6 = 1 4/6 = 1 2/3