You're running 30km? That's very impressive! Not as easy as you thought, huh? Don't worry, there's a water station after 3km. That's three 30ths of the way there. We can simplify that because both ...
Sometimes you are given numbers expressed as a product of prime factors. For example, 8 = 2 3 and 90 = 2 × 3 2 × 5. If you want to find the LCM and HCF in an exam, we can use prime factor form to ...
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