Friday 27th November 2020
LC- To add and subtract fractions
We are going to continue adding and subtracting fractions. Remember that we can't do this unless the denominators are the same.
2/3 + 1/4 = 8/12 + 3/12 = 11/12
If you can simplify at the end then remember to do it.
Have a look at this question.
So in this last example, we need to include whole numbers. We know that a whole number means a full one.
That means the top number (numerator) and bottom number (denominator) are the same.
4/4 6/6 9/9 Each of these is a full one.
1 - 2/4 is the same as saying 4/4 - 2/4.
Try the guided practice. Remember the denominator tells us how many we need to make a full one.
So if we have eighths, we would need 8 of them to have a whole.
Now try the Maths no problem work. It is worksheet 7. If you really understand then try worksheet 8 too.
If you are at home, then write the work in your books and send a photo to your teacher.