Relation between LCM and HCF

The ratio of two numbers is $4 : 6$ and their LCM is$72$, then find their HCF:

The ratio of two numbers is $8:10$ and their LCM  is$240$,then find their HCF:

The LCM of two numbers is $375$, one of the numbers is $15$, the other number is $250$, Find their HCF:

The LCM of $1820$ and $156$ is $3640$.Find their HCF:

The HCF and product of two numbers are $\frac{15}{2}$ and $3150$ respectively. Find their LCM:

The HCF and the product of two numbers are $30$ and $12600$ respectively. Find their LCM:

The LCM of two numbers is $5$ times their HCF. The product of two numbers is $3125$. Find HCF.

If the product of two numbers is $2560$ and their HCF is $16$.The LCM of the numbers will be ____.

Product of two co-prime numbers is $117$. Then their LCM is _____.

The HCF of $6453$ and $7409$ is $239$, Their LCM is _____.

The LCM and HCF of the numbers $14$ and $28$ are in the ratio of _____.

If $LCM$ of twonumber is $462 \& HCF$ is $11.$Onw of the number is $66$Find the other.

If the product of two numbers is $350 \& HCF$is $10.$Find it $LCM.$

Find the product of number if $HCF$ of two number is $10$ and $LCM$ is given as $400.$

Find $HCF$ of $LCM$ of $\frac{2}{5}, \frac{3}{8}\& LCM of \frac{1}{6}, \frac{3}{4}.$

Find $LCM$ of $HCF$ of $\frac{2}{3},\frac{1}{6}\&HCF$ of $\frac{5}{3}, \frac{3}{7}.$

If the $LCM$ of three number that are isthe ratio of $4:6:8 is 120$ find the $HCF$ of these three nos.

The sum of $LCM \& HCF is 16$ and $LCM$ is $3$ times of $HCF.$ If are of the number is $12$ FInd the other.

The $H.C.F$ and $L.C.M$ of two number are $21$ and $1050.$Finf the largest number.

Find L.C.M. of $a^2-16$ and $a^2+13a+36$.