Top answers

How do I form an algebraic fraction into a single fraction in its simplest form?

When starting with a fraction with 2 individual components, before any addition, subtraction or simplification can take place, the first step will be making them both having the same denominator. Once you ha...
AS
Answered by Axel S. • Maths tutor
8850 Views

In a bag of 25 coloured balls, 7 are orange, 6 are yellow and the rest are green. Laura picks out a ball and records its colour but doesn't return it to the bag, she then repeats this twice more. What is the probability of Laura getting 3 yellow balls?

Answer: 1/115 The easiest way to solve this problem is to draw part of a tree diagram to see the probabilites of each colour being picked each time Laura pulls a ball out of the bag (a full diagram isn't nee...
MS
Answered by Manon S. • Maths tutor
3568 Views

How do I rationalised and simplify surds?

Say I have a fraction with 2 surds, such as √10 / √6. To rationalise this, we need to get the dominator (bottom fraction) to be an integer. As √10 / √6 x 1 still gives √10 / √6, and we can write 1 as √6 / √6...
TG
Answered by Tabitha G. • Maths tutor
4881 Views

Ian earns £420 a week after a 5% rise. What was his pay before?

Ian had a 5% rise, so £420 = 105% of his original pay To find 1% of his original earnings, divide £420 by 105. Multiply this by 100 to find his old pay: 1% of his original earnings = 420/105 = £4 Original ea...
HS
Answered by Haris S. • Maths tutor
7887 Views

Solve x^2+2x-4, leaving your answer in the simplist surd form. (4marks)

Simplist surd form means use Quadratic equation Write out Quadratic equation Write out value of a, b and c Fit these values into equation Now the maths starts. Area's where students are likely to make mistak...
DR
Answered by Desnie R. • Maths tutor
3568 Views