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Answer 1

Answer:

answer is so simple sir

5(2/3 )-2(4/5 )=

10/3. - 8/5=

50-24/15=

26/15

Step-by-step explanation:

they spending 26/15 ours for other subject

Answer 2

Step-by-step explanation:

Given :

Suman studies $\bold{5\frac{2}{3} }$ hours daily.

He spends $\bold{2\frac{4}{5} }$ hours for science and mathematics.

To find :

How much time does he spend for other subjects.

Solution :

We have,

=> Total time spent by Suman for studies :

• $\bold{5\dfrac{2}{3} }$ hours

=> Total time spent by Suman for science/mathematics :

• $\bold{2\dfrac{4}{5} }$ hours

To find,

=> Total time spent for other subjects ?

Time spent by Suman for studies :

=>  $\bold{5\dfrac{2}{3} }$

=> $\bold{\dfrac{17}{3} }$ hours

Time spent by Suman for science/mathematics :

=> $\bold{2\dfrac{4}{5} }$

=> $\bold{\dfrac{14}{5} }$ hours

Time spent by Suman for other subjects :

• Time spent by Suman for studies - Time spent by Suman for science/mathematics

=> $\bold{\dfrac{17}{3}-\dfrac{14}{5} }$

=> $\bold{\dfrac{17\times5-14\times3}{15} }$

=> $\bold{\dfrac{85-42}{15} }$

=> $\bold{\dfrac{43}{15} }$ or $\bold{2\dfrac{13}{5} }$ hours.

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