Ivan and Tanya share £150 in the ration 4 : 1

work out how much more Ivan gets compared to Tanya.

Add the ratio to get total shares: 4 + 1 = 5

Divide the total amount to share by the total shares:

150 / 5 = 30

Now multiply each set of shares by that:

4 x 30 = 120

1 x 30 = 30

120-30 = 90 more