Răspuns:
4,(629)=(4619-4)/999=4625/999
0,41(6)=(9416-41)/900=375/900=5/12
4625/999:[(36-11)/9]-5/12=x/24
4625/999:25/9-5/12=x/24
4625/999·9/25-5/12=x/24 simplifici mezii cu extremii
185/111-5/12=x/24 aducem la acelasi numitor
2220/1332-555/1332=x/24
1665/1332=x/24
1332x=1665·24
x=39960:1332
x=30