Question

1)18/11×-33/45
2)-7/17×-1/10
3)-105/72×18/15
13/120×100/16
Try to do this guys​

Answer 1

➤ Solution :-

Here we are just going to do multiplication.

★ 18/11 × -33/45

$\implies\frac{18}{11} \: \times \: ( \frac{ - 33}{45} ) \\ \\ \implies18 \: \times \: ( \frac{ - 3}{45} ) \\ \\ \implies \frac{ - 54}{45} \\ \\ \implies\frac{ - 6}{5}$

★ -7/17 × 1/10

$\implies \frac{ - 7}{17} \: \times \: \frac{ - 1}{10} \\ \\ \implies \frac{7}{170}$

★ -105/72 × 18/15

$\implies \frac{ - 105}{72} \: \times \frac{18}{15} \\ \\\implies \frac{ - 105}{60} \\ \\ \implies \frac{ - 7}{4}$

★ 13/120 × 100/16

$\implies \frac{13}{120} \: \times \: \frac{100}{16} \\ \\ \implies \frac{13}{30} \: \times \: \frac{25}{16} \\ \\ \implies \frac{13}{6} \: \times \: \frac{5}{16} \\ \\ \implies\frac{65}{96}$

Note :- Refer to the attachment also.

Answer 2

$\begin{gathered}\\\;\sf1){\red{ \;\; \dfrac{18}{11} \times \frac{ - 33}{45} }}\end{gathered}$

$\begin{gathered}\\\;\sf{: \rightarrow{ \;\; \dfrac{18}{11} \times \frac{ - 33}{45} }}\end{gathered}$

$\begin{gathered}\\\;\sf{{:\rightarrow\;\; \frac{18}{ \cancel{11}} \times \frac{ \cancel{ - 33}}{45} }}\end{gathered}$

$\begin{gathered}\\\;\sf{{:\rightarrow\;\; \dfrac{18}{1} \times \dfrac{ - 3}{45} }}\end{gathered}$

$\begin{gathered}\\\;\sf{{:\rightarrow\;\; \dfrac{ - 54}{45} }}\end{gathered}$

$\begin{gathered}\\\;\sf{{ \green{:\rightarrow\;\; \dfrac{ - 6}{5} = - 1.2} }}\end{gathered}$

❖ Answer in fraction form = - 6 / 5

❖ Answer in decimal form = - 2.5

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$\begin{gathered}\\\;\sf2){\red{ \;\; \dfrac{ - 7}{17} \times \frac{ - 1}{10} }}\end{gathered}$

$\begin{gathered}\\\;\sf{:\rightarrow{ \;\; \dfrac{ - 7}{17} \times \frac{ - 1}{10} }}\end{gathered}$

$\begin{gathered}\\\;\sf{{ \green{:\rightarrow\;\; \frac{ - 7}{170} = 0.0411} }}\end{gathered}$

❖ Answer in fraction form = - 7 / 170

❖ Answer in decimal form = - 0.0411

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$\begin{gathered}\\\;\sf3){\red{ \;\; \dfrac{ - 105}{72} \times \frac{ 18}{15} }}\end{gathered}$

$\begin{gathered}\\\;\sf {:\rightarrow{ \;\; \dfrac{ - 105}{72} \times \frac{ 18}{15} }}\end{gathered}$

$\begin{gathered}\\\;\sf {:\rightarrow{ \;\; \dfrac{ - 105}{ \cancel{72}} \times \frac{ \cancel{ 18}}{15} }}\end{gathered}$

$\begin{gathered}\\\;\sf {:\rightarrow{ \;\; \dfrac{ - 105}{4} \times \frac{ 1}{15} }}\end{gathered}$

$\begin{gathered}\\\;\sf{{ {:\rightarrow\;\; \frac{ - 105}{60} } }}\end{gathered}$

$\begin{gathered}\\\;\sf{{ \green{:\rightarrow\;\; \dfrac{ - 7}{4} = - 1.75} }}\end{gathered}$

❖ Answer in fraction form = - 7 / 4

❖ Answer in decimal form = - 1.75

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$\begin{gathered}\\\;\sf4){\red{ \;\; \dfrac{ 13}{120} \times \frac{ 100}{16} }}\end{gathered}$

$\begin{gathered}\\\;\sf {:\rightarrow{ \;\; \dfrac{ 13}{120} \times \frac{ 100}{16} }}\end{gathered}$

$\begin{gathered}\\\;\sf {:\rightarrow{ \;\; \dfrac{ 13}{12 \cancel{0}} \times \frac{ 10 \cancel{0}}{16} }}\end{gathered}$

$\begin{gathered}\\\;\sf {:\rightarrow{ \;\; \dfrac{ 13}{ \cancel{12} } \times \frac{ \cancel{ 10}}{16} }}\end{gathered}$

$\begin{gathered}\\\;\sf {:\rightarrow{ \;\; \dfrac{ 13}{ 6 } \times \frac{ 5}{16} }}\end{gathered}$

$\begin{gathered}\\\;\sf{{ \green{:\rightarrow\;\; \frac{65}{96} = 0.6770} }}\end{gathered}$

❖ Answer in fraction form = 65 / 96

❖ Answer in decimal form = - 0.6770