Question

Dhamija123 answer these questions


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Answer 1

Answer:

7) No both answer are not same

Yes Sum of both answer is a rational number

8)

-11/16,-10/16,-9/16------------------------7/16,8/16,9,16

Step-by-step explanation:

7). Subtract - 16/9 from - 4/3

(-4/3)-(-16/9)

=-4/3+16/9

Taking Lcm

=-12/9+16/9

=4/9. (1)

Subtract - 4/3 from - 16/9

(-16/9)-(-4/3)

=-16/9+4/3

Taking Lcm

=-16/9+12/9

=-4/9. (2)

They are not same

Add 1 and 2

=4/9+(-4/9)

=0

0 is rational

8). Rational number between

-3/4 and 5/8

Making same denominator

Multiply - 3/4 by 4/4. (4/4=1)

Multiply 5/8 by 2/2

Rational number between

-12/16 and 10/16

-11/16,-10/16,-9/16------------------------7/16,8/16,9,16

Answer 2

Step-by-step explanation:

1.

-16/9 from -4/3

/9 from -4/3-4/3-(-16/9). LCM:9

/9 from -4/3-4/3-(-16/9). LCM:9(-4/3)*3+(16/9)*1

/9 from -4/3-4/3-(-16/9). LCM:9(-4/3)*3+(16/9)*1-12/9+16/9

=4/9

-4/3 from -16/9

-16/9-(-4/3). LCM:9

(-16/9)*1+(4/3)*3

-16/9+12/9

=-4/9

therefore the answers are not same.

2. -3/4 and 5/8

LCM:8

(-3/4)*2 and (5/8)*1

-6/8 and 5/8

(-6/8)*30 and (5/8)*30

-180/240 and 150/240

twenty rational numbers between -3/4 and 5/8 are

151/240 , 152/240 , 153/240, 154/240, 155/240 , 156/240 , 157/240, 158/240 , 159/240 , 160/240 , 161/240 , 162/240 , 163/240 , 164/240 , 165/240 , 166/240 , 167/240 , 168/240 , 169/240 , 170/240.

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