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3,14-3,1 (4)plus3, (14) plzzz rapid

Răspuns :

3,14 - 3,1(4) + 3,(14) =

= 314/100 - (314-31)/90 + (314-3)/99 =

= 314/100 - 283/90 + 311/99 =

= 314×99/9900 - 283×110/9900+311×100/9900 =

= 31130/9900 - 31130/9900 +31100/9900=

= 31100/9900 =

= 3,(14)