Question
Asher has a mass of 45 kg. Riordan is 20 kg lighter than Asher.
  1. What is Riordan's mass?
  2. Express Riordan's mass as a fraction of Asher's mass. Give your answer in its lowest terms.
4 m
(a)

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(b)

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Asher has a mass of 45 kg. Riordan is 20 kg lighter than Asher.
  1. What is Riordan's mass?
  2. Express Riordan's mass as a fraction of Asher's mass. Give your answer in its lowest terms.