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Class 10MathematicsReal NumbersHCF and LCM using prime factorisationExpertLevel 10
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If the HCF of (154) and (231) is (77), what will be the ratio of their LCM to their HCF?

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Answer and explanation

Correct answer: (6:1)

Step 1: LCM (=\frac{154\times231}{77}=462). Step 2: (\frac{462}{77}=6), so the ratio is (6:1). Step 3: Always write ratios in simplest form.

Related tags

Real-NumbersHcf-LcmRatio

Frequently asked questions

What is the correct answer to this question?

(6:1)

Why is this the correct answer?

Step 1: LCM (=\frac{154\times231}{77}=462). Step 2: (\frac{462}{77}=6), so the ratio is (6:1). Step 3: Always write ratios in simplest form.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: HCF and LCM using prime factorisation.

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