Ratio Higher level ratio methods. 2.0 / 5 based on 1 rating ? MathematicsRatios and proportionsGCSEAll boards Created by: Beth WoodwardCreated on: 09-06-11 19:25 Ratio Example: A piece of worrd is 180 cm long. Tom cuts in into 3 pieces in the ratio 2:3:4 Work out the length of the longest piece. Step 1. Add the ratios together. 2 + 3 + 4 = 9 Step 2. Divide the whole length by the total of the ratios. 180 / 9 = 20 Step 3. Times each individual ratio by the answer you got previously. 2 x 20 = 40 3 x 20 = 60 4 x 20 = 80 Therefore the length of the longets piece is 80cm 1 of 1

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