exam Maths Puzzle Numerical Ability

This is my problem: Write three fractions equivalent to each fraction
3/4
-2/5
4/12
-12/27
7/11

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exam Other Question

what is point slope form, y intercept form, and standard form???. . . . i left my book at home =( Calculate the value of the discriminant of x^2 + x + 3 = 0 By examining the sign of the discriminant in the previous equation, how many x-intercepts would the graph of y = x^2 +x + 3 have? why?