find the LCM and HCF of the following a number 21 and 30b number 48 and 80 give me the answer
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Step-by-step explanation:
21=3×7
30=2×3×5
LCM=2×3×7×5=210
HCF=3
48=2×2×2×2×3
80=2×2×2×2×5
LCM=2×2×2×2×3×5=240
HCF=2×2×2×2=16
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