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a fost răspuns

(13/5-3/5)-(4/6+7/6-5/6)+18/9=​

Răspuns :

(13/5-3/5)-(4/6+7/6-5/6)+18/9

10/5-11/6-5/6+18/9

10/5-6/6+18/9

2-1+2

1+2

3
( 13 / 5 - 3 / 5 ) - ( 4 / 6 + 7 / 6 - 5 / 6 ) + 18 / 9 =

10 / 5 - ( 11 / 6 - 5 / 6 ) + 18 / 9 =

10 / 5 - 6 / 6 + 18 / 9 =

180 / 90 - 90 / 90 + 180 / 90 =

90 / 90 + 180 / 90 =

270 / 90 = 3 / 1 = 3

Alte intrebari