Question

Class 7
Simplify
Ch Fractions ​

Answer 1

Answer:

$\sf{\circ\;The\;answer\;is\;80\dfrac{3}{5}.}$

Step-by-step explanation:

$\bf{Q)}\;\sf{72\div\dfrac{8}{9}-\dfrac{1}{2}\;of\;\dfrac{4}{5}}$

We have to solve this question using BODMAS.

Where,

• B stands for Brackets.
• O stands for Of.
• D stands for Division.
• M stands for Multiplication.
• A stands for Addition.
• S stands for Subtraction.

So,

Firstly, solving Of:

$\sf{\dashrightarrow72\div\dfrac{8}{9}-\dfrac{1}{2}\times\dfrac{4}{5}}$

Reducing the numbers,

$\sf{\dashrightarrow72\div\dfrac{8}{9}-\dfrac{1}{1}\times\dfrac{2}{5}}$

$\sf{\dashrightarrow72\div\dfrac{8}{9}-1\times\dfrac{2}{5}}$

Multiplying the numbers,

$\sf{\dashrightarrow72\div\dfrac{8}{9}-\dfrac{2}{5}}$

Then, solving Division:

$\sf{\dashrightarrow72\times\dfrac{9}{8}-\dfrac{2}{5}}$

Reducing the numbers,

$\sf{\dashrightarrow9\times\dfrac{9}{1}-\dfrac{2}{5}}$

$\sf{\dashrightarrow9\times9-\dfrac{2}{5}}$

Multiplying the numbers,

$\sf{\dashrightarrow81-\dfrac{2}{5}}$

Lastly, solving Subtraction:

$\sf{\dashrightarrow\dfrac{405-2}{5}}$

Subtracting,

$\sf{\dashrightarrow\dfrac{403}{5}}$

Converting improper fraction into mixed fraction,

$\sf{\dashrightarrow80\dfrac{3}{5}}$

Hence,

$\sf{\circ\;The\;answer\;is\;\bf{80\dfrac{3}{5}}.}$