Sagot :
(2h/3)-1/4=1/3
(2h/3)=1/3+1/4
(2h/3)=4/12+3/12
(2h/3)=7/12
2h=21/12
h=(21/12)/(2/1)
h=(21/12)*(1/2)
h=21/24
h=7/8
(2h/3)=1/3+1/4
(2h/3)=4/12+3/12
(2h/3)=7/12
2h=21/12
h=(21/12)/(2/1)
h=(21/12)*(1/2)
h=21/24
h=7/8