Odpowiedź:
1) 3 i 1/3 -1/4=3 i 4/12 - 3/12= 3 1/12
2) 1 i 2/7 + 2 i 2/8= 1 i 16/56 + 2 14/56= 3 i 30/56= 3 i 15/28
3) 1/4 - 3/5= 5/20- 12/20= - 7/20
4) 21 i 1/10 + 2 i 3/6= 21 i 3/30 + 2 i 15/30= 23 i 18/30= 23 i 9/15 = 23 i 3/5
Szczegółowe wyjaśnienie:
3 i 1/3 - 1/4 = 3 i 4/12 - 3/12 = 3 i 1/12
1 i 2/7 + 2 i 2/8 = 1 i 16/56 + 2 i 14/56 = 3 i 30/56 = 3 i 15/28
1/4 - 3/5 = 5/20 - 12/20 = -7/20
21 i 1/10 + 2 i 3/6 = 21 i 3/30 + 2 i 15/30 = 23 i 18/30 = 23 i 9/15 = 23 i 3/5
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Odpowiedź:
1) 3 i 1/3 -1/4=3 i 4/12 - 3/12= 3 1/12
2) 1 i 2/7 + 2 i 2/8= 1 i 16/56 + 2 14/56= 3 i 30/56= 3 i 15/28
3) 1/4 - 3/5= 5/20- 12/20= - 7/20
4) 21 i 1/10 + 2 i 3/6= 21 i 3/30 + 2 i 15/30= 23 i 18/30= 23 i 9/15 = 23 i 3/5
Szczegółowe wyjaśnienie:
Odpowiedź:
3 i 1/3 - 1/4 = 3 i 4/12 - 3/12 = 3 i 1/12
1 i 2/7 + 2 i 2/8 = 1 i 16/56 + 2 i 14/56 = 3 i 30/56 = 3 i 15/28
1/4 - 3/5 = 5/20 - 12/20 = -7/20
21 i 1/10 + 2 i 3/6 = 21 i 3/30 + 2 i 15/30 = 23 i 18/30 = 23 i 9/15 = 23 i 3/5