You may think that the only fractions are those funny things you see on blackboards and chalk boards, and have little to do with life outside school.
Here we look at VULGAR FRACTIONS. A vulgar fraction is a common fraction which is written as one integer (whole) number over another integer with a line between the two, for example 3/4.
Let’s look at how we write fractions:
Where do we find fractions?
Addition and Subtraction of Fractions. Note that they must be 'of the same family' before you can add or subtract them, In this example we make them all twelfths (/12).
Renaming fractions
Did you know that?
Fraction poem!!
a. Making fractions by folding paper
b. Fractions on a clock face
c. Fractions on a compass
Questions: How much turn is there between east and southwest in a clockwise direction? Copy out and complete the table below, and write the fraction you would turn from North to the various points going in a clockwise and anticlockwise direction:
d. Estimating fractions
Play a game with friends on the ground between two trees or other objects. Put your initials on a piece of paper and it where you think 3/5 of the distance would be between the objects. Measure to see who is the nearest:
e. Fractions across the classroom If your teacher paced out the width of your classroom using long strides, while you do the same using shorter paces, the same width of the classroom has been divided into different paces or lengths. These lengths can be thought of as fractions of the whole:
A whole can be divided into many different sized pieces or fractions. Earlier you folded a piece of paper into different fractions - halves, quarters and eighths. Make these fractional strips on a large paper or card:
Questions: If A is the whole, what fraction of A is C? If A is the whole, what fraction of A is B? If B is the whole, what fraction of B is C?
f. Fractions of whole numbers