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Calculati a) 2/7 plus 1/7= b) 13/5 minus 4/5 = c) 3/4 plus 2/8 = d)7/6 minus 1/3. e) 27/5 plus 12/4 f) 5 inttegii 1/6 plus 3 intregii 2/3 =

Răspuns :

Pisicutza37
2/7+1/7=3/7
13/5-4/5=9/5
3/4+2/8= simplifici pe 2/8 cu 2 si ramane 1/4=4/4
......si tot asa amplificicsi simplifici
Arnold111
a) 3/7
b)9/4
c) 8/8 =1
d)5/6
e) 42/5

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