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Bogdantanea2015
a fost răspuns

Construeste lanturile de calcule ex 4

Construeste Lanturile De Calcule Ex 4 class=

Răspuns :

Andreea2008M
a)
4/7-2/7=2/7
2/7+1/7=3/7
3/7+1/7=4/7  
4/7-2/7=2/7

b)
4/5-1/5=3/5
3/5+2/5=5/5=1

1=9/9-4/9=5/9
5/9+2/9=7/9


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