a) 2/3+6/7=14/21 + 18/21 = 32/21 = 1 11/21
7/8+6/7=49/56 + 48/56 = 97/56 = 1 41/56
7/8+5/6= 21/24 + 20/24 = 41/24 = 1 17/24
b) 5 1/4+5/6= 5 3/12 + 10/12 = 5 13/12 = 6 1/12
1 7/9+ 2 3/10= 1 70/90 + 2 27/90 = 3 97/90 = 4 7/90
2 7/8+ 3 1/6= = 2 21/24 + 3 4/24 = 5 25/24 = 6 1/24
c) 8/9-2/5= 40/45 - 18/45 = 22/45
7/8-2/5= 35/40 - 16/40 = 19/40
4 5/6-1/4=4 10/12 - 3/12 = 4 7/12
d) 6 8/9- 1 1/2= 6 16/18 - 1 9/18 = 5 7/18
8 5/7- 3 2/5= 8 25/35 - 3 14/35 = 5 11/35
4 1/4- 4 1/6= 4 3/12 - 4 2/12 = 1/12
Odpowiedź:
Mam nadzieję, że pomogłem
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a) 2/3+6/7=14/21 + 18/21 = 32/21 = 1 11/21
7/8+6/7=49/56 + 48/56 = 97/56 = 1 41/56
7/8+5/6= 21/24 + 20/24 = 41/24 = 1 17/24
b) 5 1/4+5/6= 5 3/12 + 10/12 = 5 13/12 = 6 1/12
1 7/9+ 2 3/10= 1 70/90 + 2 27/90 = 3 97/90 = 4 7/90
2 7/8+ 3 1/6= = 2 21/24 + 3 4/24 = 5 25/24 = 6 1/24
c) 8/9-2/5= 40/45 - 18/45 = 22/45
7/8-2/5= 35/40 - 16/40 = 19/40
4 5/6-1/4=4 10/12 - 3/12 = 4 7/12
d) 6 8/9- 1 1/2= 6 16/18 - 1 9/18 = 5 7/18
8 5/7- 3 2/5= 8 25/35 - 3 14/35 = 5 11/35
4 1/4- 4 1/6= 4 3/12 - 4 2/12 = 1/12
Odpowiedź:
Mam nadzieję, że pomogłem