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Mareste de opt ori fractia:2supra3,3supra4,4supra5,5supra6,9supra8

Răspuns :

(8pe1- e 8 intreg)
inmultim numaratorii intre ei si numutorii intre ei)
2pe3×8pe1=(adica 2×8 si 3×1 )=16pe3
3pe4×8pe1=24pe4(simplificam la4)=6pe1
4pe5×8pe1=32pe5
5pe6×8pe1=40pe6(simplificam la2)= 20pe3
9pe8×8pe1=72pe8(simplificam la8)=9pe1
2
[tex]2x5 {. {8 {?}^{2} }^{2} }^{2} [/tex]