1/10 per batch
1/2 used
they made 5 batches cause, that is what is 10 is halved by. For ex: I used 1/2 bags of flour and each batch uses 1/20 bags of flower. How many batches did I make. This is 10.
All you need to do is take the denominator, and cut it in half, cause that is how much was used. and 10 divided by 2 is 5.
