9całych i 1/2 - 3całe i 5/8
2całe i 7/9 - 1 i 1/6
1/2 - a = 3/7
- to znak minus
plisssss pomuzcie z ulamkami !!!!!!!!
9 i 1/2 - 3 i 5/8= 9 i 4/8 - 3 i 5/8= 8 i 12/8 - 3 i 5/8 = 5 i 7/82 i 7/9 - 1 i 1/6 = 2 i 28/36 - 1 i 6/36 = 1 i 22/361/2- a = 3/7 a= 3/7 - 1/2a= 6/14 - 7/14a= -1/14z tym ostatnim to nie jestem pewna
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9 i 1/2 - 3 i 5/8= 9 i 4/8 - 3 i 5/8= 8 i 12/8 - 3 i 5/8 = 5 i 7/8
2 i 7/9 - 1 i 1/6 = 2 i 28/36 - 1 i 6/36 = 1 i 22/36
1/2- a = 3/7
a= 3/7 - 1/2
a= 6/14 - 7/14
a= -1/14
z tym ostatnim to nie jestem pewna