work out 3 1/2 - 2 1/3. Give answer as an improper fraction
change everything to sixths. 21/6 - 14/6 = 7/6
MS
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A cuboid has edge 7 centimetres, 5 centimetres and a total surface area of 142 centimetres squared. A larger, similar cuboid has a shortest edge of 12 centimetres. Find the third edge of the smaller cuboid and the volume of the larger cuboid.
In 2017 the number of teachers in a school was 20. The number of teachers doubles each year. If in 2019 3/5 of the teachers are female how many male teachers are there in 2019?
Which of these fractions is the largest - 33/56 ,4/7, 9/21, 6/14