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For fractions,

HCF = $\frac{HCF of Numerators}{LCM of Denominators}$

LCM =$\frac{LCM of Numerators}{HCF of Denominators}$

So LCM off 147/64 and 30/44 = $\frac{LCM(147,30)}{HCF(64,44)}$ = $\frac{1470}{4}$
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