We have not covered how to do this kind of division yet, but it shows an alternative way of finding the decimal value of a fraction. (You will get instruction on this method in fifth grade.)
As we saw in the last lesson, adding to fractions is sometimes easier if you convert them to decimals first. Consider the following examples:
2/25 + 1/20 = .08 + .05 = .13
3/20 + 1/4 = .15 + .25 = .40
2/25 + 1/20 = 8/100 + 5/100 = 13/100 = .13
3/20 + 1/4 = 15/100 + 25/100 = 40/100 = .40
Besides converting to equivalent fractions (for instance, 3/4 = 75/100 =
.75), we can also perform straight division like this:
We have not covered how to do this kind of division yet, but it shows an
alternative way of finding the decimal value of a fraction. (You will get
instruction on this method in fifth grade.)
Now you get to try a few for yourself.