Math, asked by luckybhagtana2008, 8 months ago

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Answers

Answered by SheerinFarhana
1

7. Add the reciprocal of 3/2 to the reciprocal of - 3/7

Solution

  • Reciprocal of 3/2 = 2/3
  • Reciprocal of - 3/7 = - 7/3
  • Sum of 2/3 & - 7/3

( \frac{2}{3} ) + ( \frac{ - 7}{3} ) =  \frac{2 + ( - 7)}{3}  \\  =  \frac{2 - 7}{3}  \\  =  \frac{ - 5}{3}

8. Subtract the reciprocal of 5/14 from the product of - 3/10 & 2/15

Solution

  • Reciprocal of 5/14 = 14/5
  • Product of - 3/10 & 2/15

( \frac{ - 3}{10} ) \times ( \frac{2}{15} ) = ( \frac{ - 3}{15} ) \times ( \frac{2}{10} ) \\  = ( \frac{ - 1}{5} ) \times ( \frac{1}{5} ) \\  =  \frac{ - 1}{25}

  • Subtract 14/5 from - 1/25

(  \frac{ - 1}{25} ) - ( \frac{14}{5} ) =  \frac{( - 1) - (14 \times 5)}{25}  \\  =  \frac{ - 1 - 70}{25}  \\  =  \frac{ - 71}{25}

9. Multiply the sum of -4/15 & 4/15 by 10/13

Solution

  • Sum of - 4/15 & 4/15

(  \frac{ - 4}{15} ) + ( \frac{4}{15} ) =  \frac{ - 4 +4}{15}  \\  =  \frac{0}{15}  \\  = 0

  • Multiply 0 by 10/13

0 \times  \frac{10}{13}  = 0

Answer

7. (-1/25)

8. (-71/25)

9. 0

Answered by sahoosushree07
1

Answer:

Add the reciprocal of 3/2 to the reciprocal of - 3/7

Solution

Reciprocal of 3/2 = 2/3

Reciprocal of - 3/7 = - 7/3

Sum of 2/3 & - 7/3

\begin{gathered}( \frac{2}{3} ) + ( \frac{ - 7}{3} ) = \frac{2 + ( - 7)}{3} \\ = \frac{2 - 7}{3} \\ = \frac{ - 5}{3}\end{gathered}

(

3

2

)+(

3

−7

)=

3

2+(−7)

=

3

2−7

=

3

−5

8. Subtract the reciprocal of 5/14 from the product of - 3/10 & 2/15

Solution

Reciprocal of 5/14 = 14/5

Product of - 3/10 & 2/15

\begin{gathered}( \frac{ - 3}{10} ) \times ( \frac{2}{15} ) = ( \frac{ - 3}{15} ) \times ( \frac{2}{10} ) \\ = ( \frac{ - 1}{5} ) \times ( \frac{1}{5} ) \\ = \frac{ - 1}{25}\end{gathered}

(

10

−3

)×(

15

2

)=(

15

−3

)×(

10

2

)

=(

5

−1

)×(

5

1

)

=

25

−1

Subtract 14/5 from - 1/25

\begin{gathered}( \frac{ - 1}{25} ) - ( \frac{14}{5} ) = \frac{( - 1) - (14 \times 5)}{25} \\ = \frac{ - 1 - 70}{25} \\ = \frac{ - 71}{25}\end{gathered}

(

25

−1

)−(

5

14

)=

25

(−1)−(14×5)

=

25

−1−70

=

25

−71

9. Multiply the sum of -4/15 & 4/15 by 10/13

Solution

Sum of - 4/15 & 4/15

\begin{gathered}( \frac{ - 4}{15} ) + ( \frac{4}{15} ) = \frac{ - 4 +4}{15} \\ = \frac{0}{15} \\ = 0\end{gathered}

(

15

−4

)+(

15

4

)=

15

−4+4

=

15

0

=0

Multiply 0 by 10/13

0 \times \frac{10}{13} = 00×

13

10

=0

Answer

7. (-1/25)

8. (-71/25)

9. 0

Step-by-step explanation:

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