# LCM and HCF

QUANT & REASONING PRACTICE TESTS FOR BANK/SSC EXAMS

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## Important Points

Product of two numbers

Product of two numbers = Product of their H.C.F and L.C.M

Co prime numbers

Two numbers are said to be co primes if their H.C.F is 1

H.C.F. and L.C.M. of Decimal Fractions

In a given numbers, make the same number of decimal places by annexing zeros in some numbers, if necessary. Considering these numbers without decimal point, find H.C.F. or L.C.M. as the case may be. Now, in the result, mark off as many decimal places as are there in each of the given numbers.

Comparison of Fractions

Find the L.C.M. of the denominators of the given fractions. Convert each of the fractions into an equivalent fraction with L.C.M as the denominator, by multiplying both the numerator and denominator by the same number. The resultant fraction with the greatest numerator is the greatest.

Product of two numbers = Product of their H.C.F and L.C.M

Co prime numbers

Two numbers are said to be co primes if their H.C.F is 1

H.C.F. and L.C.M. of Decimal Fractions

In a given numbers, make the same number of decimal places by annexing zeros in some numbers, if necessary. Considering these numbers without decimal point, find H.C.F. or L.C.M. as the case may be. Now, in the result, mark off as many decimal places as are there in each of the given numbers.

Comparison of Fractions

Find the L.C.M. of the denominators of the given fractions. Convert each of the fractions into an equivalent fraction with L.C.M as the denominator, by multiplying both the numerator and denominator by the same number. The resultant fraction with the greatest numerator is the greatest.