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Show (4+5/7) - (2+1/3) as a single mixed fraction.

Mixed number -> top heavy fraction: 4 + 5/7 = ((4 7)+5)/7 = (28+5)/7 = 33/7 2+ 1/3 = ((2 3)+1)/3 = (6+1)/3 = 7/3 Common denominator by multiplying by each others: 33/7 = (33 3)/(7 3) = 99/21 7/3 = (7 7)/(...
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Answered by Ethan R. • Maths tutor
4039 Views

How do I work out probability when a random choice is repeated?

Before you try to work out the probability, establish the following answers from the question and jot them down. How many items are there in total? After something is chosen, is it put back before the next c...
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Answered by Naomi C. • Maths tutor
4065 Views

Simplify 2a+6b-a+2b+3a

Look for the corresponding letters to each number. So, as an example those with a. remember that the + or - before it tells us whether it is to be added or subtracted There are 2a-a+3a so that = 4a With b th...
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Answered by Tom H. • Maths tutor
5117 Views

Factorise fully 8y + 4y^2

This question relies on knowledge of algebraic expressions and highest common factors. What is the highest common factor which goes into the expressions 8y and 4y^2. The answer is 4y. This is then taken on t...
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Answered by Abhinav T. • Maths tutor
8430 Views

I can't figure out this question to do with VAT. VAT is charged at 20%. A TV is for sale for £650 inc. VAT in Good Electronics and the same TV is for sale £495 exc. VAT in Wright's Electricals, where is it cheaper?

I can't figure out this question to do with VAT. VAT is charged at 20%. A TV is for sale for £650 inc. VAT in Good Electronics and the same TV is for sale £495 exc. VAT in Wright's Electricals, where is it c...
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Answered by William H. • Maths tutor
5870 Views