Question

help me with this question ​

Answer 1

simply find out the l.c.m of the denominator s and then equate them

soln-

(1/9)+(1/10) =n/11

l.c.m is 90

so the expression becomes

(10/90)+(9/90)=(n/11)

19/90=n/11

cross multiply

19*11=n*90

90n=209

n=209/90

n=13.4333(recurring)

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Answer 2

Step-by-step explanation:

see the attachment

brainlist