£1 = $1.25. Change $75 to pounds.

Step by step

The question

Question: change $75 to pounds, when £1 = $1.25.

1 Write the rate

The rate says: 1 pound is worth 1.25 dollars.

From pounds to dollars, we multiply by 1.25.

Going back, we divide by 1.25.

2 Divide by the rate

Each £1 gives $1.25.

So we find how many $1.25 fit in $75: we divide by 1.25.

Careful!

From dollars back to pounds goes the other way.

We divide, not multiply.

75 divided by 1.25 is £60.

To divide by 1.25, we move the point in both numbers 2 places: 7500 divided by 125.

So $75 is £60.

3 Check

Let's check: change the answer back.

£60 times 1.25 is $75.

That is what we started with.

So the answer is right!

Let's look back.

First: write the rate.

Then: divide by the rate.

Last: check.