Easy Way To Solve Aptitude Question

H.C.F of factor=        H.C.F of numerators                                   L.C.M of denominators L.C.M of factor=       L .C.M of numerators                                   H.C.F of denominators Note:- Multiplication   of any two number is always equal two the multiplication of its HCF and LCM .\   **           first number*second number=HCF*LCM                              eq-1 we know HCF convert numbers in ratio with divide. for Example we have two number "15 and 28" and the HCF of these numbers is 3. if we divide numbers with HCF then we find ratio 5:7 Now if the given number is in ratio of a:b then...

Highest Common Factor (H.C.F):-   The H.C.F of two or more than two number is the greatest that divides each of them exactly. Easy way :- Step 1 :          First find the difference of given two least no .                         now either that difference if H.C.F or its factor  is H.C.F. step 2 :          factorize that difference. step 3 :          divide given each number with those factors. Step 4 :         multiply those factor who divide all given number. Example-Find the H.C.F of 1365,1560 and 1755 .         Step 1:-   difference=  1560-   1365                                          =195            ...