Addition and Subtraction of Fractions

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Question 1
Which of the following is correct for $\frac{3}{4}+\frac{7}{4}=$

Question 2
Peter and Mary, bought a pizza divided into 16 pieces.
Peter ate 5 pieces and Mary ate 4 pieces. How much of the pizza is left?
Peter and Mary, bought a pizza divided into 16 pieces.<br />
Peter ate 5 pieces and Mary ate 4 pieces. How much of the pizza is left?

Question 3
What is the least common multiple (LCM) of 2, 3 and 6?

Question 4
Which of the following is correct for $\frac{9}{2}+\frac{10}{5}=$

Question 5
Which of the following is correct?
$\frac{7}{3}+\frac{5}{3}-\frac{1}{3}=$

Question 6
Which of the following is correct?
$\frac{1}{2}+\frac{5}{3}+\frac{1}{5}=$

Question 7
Which of the following is correct?
$\frac{5}{6}-\frac{1}{10}+\frac{2}{15}=$

Question 8
Bearing in mind that $LCM(8,10)=40$, how do we add the fractions $\frac{3}{10}+\frac{9}{8}=$

Question 9
Bearing in mind that $LCM(2,3)=6$ and $LCM(3,5)=15$, how do we solve this?
$\frac{\frac{1}{2}+\frac{5}{3}}{\frac{2}{3}+\frac{1}{5}}=$

Question 10
Given $\frac{1}{12}+\frac{3}{25}-\frac{5}{18}$ and $LCM(12,25,18)=p$
Which of these is correct?



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