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Ma poate ajuta cineva eu lam scris dar nu sunt sigura daca e corect !!​

Ma Poate Ajuta Cineva Eu Lam Scris Dar Nu Sunt Sigura Daca E Corect class=

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Dianageorgiana794ask

Răspuns:

2,(3)=(23-2)/9=21/9=7/3

7/3:4/3=7/3·3/4=se reduce 3 cu 3=7/4

13 si 2/3=(13·3+2)/3=41/3

7/4-{41/3-[11+(3/4+3/4·5/3)]}=

7/4-{41/3-[11+(3/4+5/4)]}=

7/4-[41/3-(⁴⁾11+8/4)]=

7/4-[41/3-(44/4+8/4)]=

7/4-(41/3-52/4)=

7/4-(41/3-³⁾13)=

7/4-(41/3-39/3)=

³⁾7/4-⁴⁾2/3=21/12-8/12=13/12