Sir/ma'am

Que. Is 1/1.2 where 1.2 is a terminating decimal representation is it pratiphal no.

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Solution

Division
(i) Closure property :

The collection of non-zero rational numbers is closed under division.

If a/b and c/d are two rational numbers, such that c/d ≠ 0,

then a/b ÷ c/d is always a rational number.

hence it is a rational number

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Sir/ma'am

Que. Without actual division find which of the following rational numbers ar terminating decimals. Justify.

i 11/80,48/455,7/12,6/35,13/125

1.2 \div 0.16

\frac{1.2 \times 1.2 + 1.2 \times 0.3 + 0.3 \times 0.3}{1.2 \times 1.2 \times 1.2 - 0.3 \times 0.3 \times 0.3} = \frac{m}{1.8}, F i n d m

\frac{71}{150}

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