Question

hallar el valor de "y" en cada caso.
a) Y/4 +3/4 =2 1/2
b) 4/7 + 1/2 = Y/24
c) 1/Y - 1/3 = 0
d) 1 8/9 + 2/3 =2 5/Y

Answer 1

y/4 +3/4 =21/2 
y/4=21/2-3/4
y/4=39/4
y=(39/4)*4
y= 39

4/7 +1/2 = y/24
(4/7+1/2)*24 = y
15/14 *24=y
180/7=y

1/y-1/3=0
1/y=1/3
y=1/(1/3)
y=3

18/9 -2/3=25/y
25/(18/9-2/3)=y
25/(4/3)=y
y=75/4