Question
Rael has a mass of 80 kg. Japheth is 18 kg lighter than Rael.
  1. What is Japheth's mass?
  2. Express Japheth's mass as a fraction of Rael's mass. Give your answer in its lowest terms.
4 m
(a)

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(b)

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Rael has a mass of 80 kg. Japheth is 18 kg lighter than Rael.
  1. What is Japheth's mass?
  2. Express Japheth's mass as a fraction of Rael's mass. Give your answer in its lowest terms.