A common misconception is that ELF files are just for executables. We already have seen they can be used for partial pieces (object code). Another example includes shared libraries, and even core dumps (those core or a.out files). ELF is also used for the kernel and kernel modules on Linux machines.
In this book (Life of Fred: Fractions) and the next book (Life of Fred: Decimals and Percents) you can learn everything you need to know to begin algebra! In one morning, our hero: 1  Teaches a class at the university.  Buys a bicycle.
Dividing Fractions: Fitting the Divisor. In this lesson we solve fraction divisions by thinking how many times the divisor fits or goes into the dividend. For example, the fraction 1/4 goes into five 20 times, so 5 Ã· (1/4) = 20. The lesson has lots of exercises with visual models and many word problems.