Q18 of 114 Page 36

Express as a rational number in simplest form.

Let x = 0. - (i)

Multiply 10 on both sides -


10x = 4. - (ii)


Subtract the equations (i) from (ii) -


⇒ 9x = 4


So x =


More from this chapter

All 114 →
16

If a and b are relatively prime, what is their LCM?

 17

The LCM of two numbers is 1200. Show that the HCF of these numbers cannot be 500. Why?

 19

Express as a rational number in simplest form.

 20

Express why 0.15015001500015… is an irrational number.