Question

ache o valor de x para tornar as frações equivalentes a) 3/4=x/36 b)7/15=42/x c) 9/14/42/x d)2/10=x/5​

Answer 1

Explicação passo a passo:

a)

3/4=x/36

em cruz

4 *x = 3 * 36

4x = 108

x = 108/4 = 27 >>>>>

a fração será 27/36>>>>>>>>>>

b)

7/15=42/x

7 * x = 15 * 42

7x = 630

x = 630/7 = 90 >>>>>

a fração será 42/90 >>>>>>>>>

c)

9/14= 42/x

9 * x = 14 * 42

9x =588

x = 588/9 >>>>>>>>>

d)

2/10=x/5​

10 * x = 2 * 5

10x = 10

x = 10/10=1

fração será 1/5 >>>