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Q : 4    Write each of the following as decimals:
(a)     $\small \frac{5}{10}$         (b) $\small 3+\frac{7}{10}$         (c) $\small 200+60+5+\frac{1}{10}$         (d) $\small 70+\frac{8}{10}$
(e)   $\small \frac{88}{10}$           (f)   $\small 4\frac{2}{10}$                 (g) $\small \frac{3}{2}$                 (h) $\small \frac{2}{5}$ (i)   $\small \frac{12}{5}$          (j)   $\small 3\frac{3}{5}$      (k)   $\small 4\frac{1}{2}$

Answers (1)

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As we know when we divide a number by 10, the result is that number with a decimal after one digit,(we count the digit from right to left).

So Keeping that in mind,

(a)

$\small \frac{5}{10}=0.5$

(b)

$\small 3+\frac{7}{10}=3+0.7=3.7$

(c)

$\small 200+60+5+\frac{1}{10}=265+0.1=265.1$

(d)

$\small 70+\frac{8}{10}=70+0.8=70.8$
(e)

$\small \frac{88}{10}=8.8$

(f)

$\small 4\frac{2}{10}=4+\frac{2}{10}=4+0.2=4.2$

(g)

$\small \frac{3}{2}=\frac{3}{2}\times\frac{5}{5}=\frac{15}{10}=1.5$

(h)

$\small \frac{2}{5}=\frac{2}{5}\times\frac{2}{2}=\frac{4}{10}=0.4$

(i)

$\small \frac{12}{5}=\frac{12}{5}\times\frac{2}{2}=\frac{24}{10}=2.4$

(j)

$\small 3\frac{3}{5}=3+\frac{3}{5}=3+\frac{3}{5}\times\frac{2}{2}=3+\frac{6}{10}=3+0.6=3.6$

(k)

$\small 4\frac{1}{2}=4+\frac{1}{2}=4+\frac{1}{2}\times\frac{5}{5}=4+\frac{5}{10}=4+0.5=4.5$

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Pankaj Sanodiya

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