Question

Como resolver 1/4=3x/10

Answer 1

$\frac{1}{4} = \frac{3x}{10}$
MMC de 10 e 4

10,4|2
5,2 |2
5/1 |5
1/1

5x2x2 = 20

$\frac{5 = 6x}{20}$
5 = 6x

-6x =-5.(-1)
-6x = 5
x = -5/6

Answer 2

R=

1/4=3x/10
10=12x
12x=10
x= 5/6