Question

please tell me answer of this question​

Answer 1

Answer:

Step-by-step explanation: que 1 ) (a) -7/3 + 23/5 =

= lcm of 3 and 5 is 15 so 15 dividr by 3 is 5 so , -7*5 = -35 and 15 divide by 5 is 3 so , 23*3 = 69

= -35+69/15

= 34/15

(b) -8/19 + ( -2)/57

= -8/19-2/57

= lcm of 19 and 57 is 57 so 57 divide by 19 is 3 so , -8*3=-24 and 57 divide by 57 is 1 so , -2*1 = -2

= -24-2/57

= -26/57

2 ) (a) -6/13+7/15

= lcm of 13 and 15 is 195 so , 195 divide by 13 is 15 so , 15* - 6 = 90 and 195 divide by 15 is 13 so , 13*7=91

= -90+91/195

= 1 / 195

(b) - 19/9 - 6/1

Lcm of 9 and 1 is 9 so 9 divide by 9 is 1 so , -19*1= -19 and 9 divide by 1 is 9 so , -6*9= -54

= -19-54/9

= -73/9

3) (a) -6/5 * 9*11

= -54/55

(b) 3/-5 * -5/3

= minus minus will cut so three three and five five will cut so answer will be

= 1

4) (a) -4/5 / (-3)

= -4/5. / -3/1

= -12/ 5

(b) -7/12 / -2/13

Minus 2 and 12 will be cutted so two will replace 1 and 12 will replace 6 so lets multiply

= 7/ 78

5) (a) answer is -8/5

(b) answer is 5/11

( c ) answer is 1/-3

6) -24 / 7 and -19/5 ( which is greater? )

Lets take lcm of 7 and 5 it is 35 so 35 divide by 7 is 5 so , -24*5=-120 and 35 divide by 5 is 7 so , -19*7=-133

Now compare which on is greator ( -120 , -133 / 35

- 133 is greator so it means -19/4 is greater......

7) to find the other number we have to divide -4/5 and 8/35

Answer will -7/ 4

8) (a) answer is -61/72

(b) answer is 1/4 , 2/4 , 3/4 and etc...there are infinite rational numbers..these are some of them.......