Question

represent 1.287 in p/q (there is a bar on 7 )​

Answer 1

let x is equal to 1. 287 bar

therefore 100 x is equal to 1 28.7 bar- 1

1000x=1287.7 bar- 2

subtracting both equation

1000x-100x=1287.7 bar - 128.7 bar

900x=1,159

x=1159/900 see your answer sheet if it is wrong comment me I will tell you

Answer 2

let x=1.28777....

on Multiplying both sides by 100

100*x= 100 * 1.28777....

100x = 128.777...

100x = 128 + 7/9 ( " . "converts into " + ".)

100x = 1159/9 ( Bar will be converted

x= 1159/900. into /9)