Question

the sum of 0.5bar and 0.7 bar in simplest form is OPTION IS A 12/90 B 12/10 C 3/4 D 4/3

Answer 1

Answer:

D. 4/3

Step-by-step explanation:

For 0.5bar

x=0.5bar

10x = 5.5bar

10x - x = 5.5bar - 0.5bar

9x = 5

x = 5/9    ================>1

For 0.7bar

x=0.7bar

10x = 7.7bar

10x - x = 7.7bar - 0.7bar

9x = 7

x = 7/9  =================>2

5/9 +7/9 = $\frac{5+7}{9}$

=>12/9

Therefore 4/3