Răspuns :
Avem
IV nr= 29+1/5 *1/3*1/2= 29/1+1/30=30+870/30=900/30=30
III nr= 1/2*[29+1/5 *1/3*1/2]=1/2*30=15
II nr=1/3 * [1/2*(29+1/5 *1/3*1/2)]=1/3*15=5
I nr=1/5*[1/3 * (1/2*(29+1/5 *1/3*1/2))=1/5*5=1
R/s I nr=1
II nr=5
III nr=15
IV=30
IV nr= 29+1/5 *1/3*1/2= 29/1+1/30=30+870/30=900/30=30
III nr= 1/2*[29+1/5 *1/3*1/2]=1/2*30=15
II nr=1/3 * [1/2*(29+1/5 *1/3*1/2)]=1/3*15=5
I nr=1/5*[1/3 * (1/2*(29+1/5 *1/3*1/2))=1/5*5=1
R/s I nr=1
II nr=5
III nr=15
IV=30
a= 1/5 din b
a=b/5
b=1/3 din c
b=c/3
c=1/2 din d
c=d/2
d-29=a
a= c/3 *1/5
a=c/15
a=d/2/15
a=d/2 *1/15
a=d/30
d-29=d/30 aducem la acelasi numitor
30d -870 =d
30d-d=870
29d= 870
d=870/29
d=30
a=30/30=1
b=1*5=5
c=30/2=15
a=b/5
b=1/3 din c
b=c/3
c=1/2 din d
c=d/2
d-29=a
a= c/3 *1/5
a=c/15
a=d/2/15
a=d/2 *1/15
a=d/30
d-29=d/30 aducem la acelasi numitor
30d -870 =d
30d-d=870
29d= 870
d=870/29
d=30
a=30/30=1
b=1*5=5
c=30/2=15