book Maths Puzzle Numerical Ability

Can 89/13, 151/11 or 223/23 be simplivied?

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book Other Question

What is the answer to 3x/5-4/5(x+1)=2-3/10(3x-4) I am not sure how to use the x-intercept and the y-intercept to gragh this equation, y= x+1