#1**+1 **

You could do it on your calculator if you have a fraction button.

otherwise

27 1/4 - 12 8/9

= 27 + 1/4 - (12 + 8/9)

= 27 + 1/4 - 12 - 8/9

= 27 - 12 + 1/4 - 8/9

= 15 +1/4 - 8/9

hopefully you will recognise that 1/4 is less than a half and 8/9 is more than a half. The first one needs to be the biggest unless you want to deal with negative numbers.

So I suggest you change 15 + 1/4 into 14 + 1 + 1/4 and, 1 and a quarter is 5 quarters.

so

=14 + 5/4 - 8/9

Now, you cannot add or subtract fractions unless the denominators (bottoms) are the same. You must find a number that 4 goes into and 9 goes into. 4*9 will work and in this case it is the smallest one.

So you will have to change it to 14 + something over 36 - something else of 36

and I am going to let you finish by yourself.

Happy puzzling.

otherwise

27 1/4 - 12 8/9

= 27 + 1/4 - (12 + 8/9)

= 27 + 1/4 - 12 - 8/9

= 27 - 12 + 1/4 - 8/9

= 15 +1/4 - 8/9

hopefully you will recognise that 1/4 is less than a half and 8/9 is more than a half. The first one needs to be the biggest unless you want to deal with negative numbers.

So I suggest you change 15 + 1/4 into 14 + 1 + 1/4 and, 1 and a quarter is 5 quarters.

so

=14 + 5/4 - 8/9

Now, you cannot add or subtract fractions unless the denominators (bottoms) are the same. You must find a number that 4 goes into and 9 goes into. 4*9 will work and in this case it is the smallest one.

So you will have to change it to 14 + something over 36 - something else of 36

and I am going to let you finish by yourself.

Happy puzzling.

Melody Sep 29, 2013