Evaluate 3 /5 + 1/ 4

5×4=20 common denominator what did you do to 5 to get to 20? X4, therefore you have to 3x4=12what did you do to 4 to get to 20? X5, therefore you have to 1x5=5
12/20 + 5/20= 17/20

VK

Related Maths GCSE answers

All answers ▸

How do I complete the square of an equation?


Solve the simultaneous equations: 6x + 3y = 42 4x + 7y = 38


solve 125^(1/3)*2^(-3)


Work out the gradient of the tangent to the curve (y=x^2-x-2) at the point where x=2