Express in the form of p/q :

(i) 0.12▁3 (ii) 0. ▁621 (iii) 2.2▁18

1)0.123( bar on 3)

Let X = 0.123 ( bar on 3)

Then X = 0.1233 (1)

Multiply equation (1) by 100 we get,

100X = 12.33 (2)

Again multiply equation (2) by 10 we get,

1000X = 123.33 (3)

Subtract equation (2) from equation (3) we get,

1000X = 123.33

100X = 12.33

900X = 111

X = 111/900

Hence,

0.123 ( bar on 3) is in the form of 111/900 which is in the form of P/Q.

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.