First you add the ratio together 3+7=10 Then you do £300 divided by 10 = £30 <span>Then you do £30 X 3 (from the ratio in the beginning) which equals £90 </span> <span>Then you do £30 X 7 (also from the ratio in the beginning) which equals £210 </span> <span>The ratio is £90:£210 </span> <span>Also you can add the ratios up so that it equals £300 the number you started with </span> <span>£90+£210=£300 </span> <span>Hope I helped :)</span>
