Question

......answer please....

Answer 1

Answer:

41/40

Step-by-step explanation:

•     [-9/8+11/10]+x =1
•   TAKE LCM
•   [ (-90+88)/80]+X = 1
•   [-2/80]+X = 1
•   X = 1+2/80
•   X = 82/80
•   X= 41/40

Answer 2

Answer:

let us take the adding no. be x

now, -9/8+11/10+x=1

=-90+88/80+x=1

=-2/80+x=1

=x=1+2/80

=x=82/80

=x=41/40

hence the no. which should be add with -9/8+11/10 to get one must be 41/40

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