How To Add Fractions With Unlike Denominator

adding and subtracting with unlike denominators,a la shmoop. you've been working on assembling your monsterfor months... well, "monster" is a harsh word, isn't it?you've done your best to find locally sourced body parts and organically grown organs... because organs should be, you know, organic.before frankenvegan can be brought to life,

How To Add Fractions With Unlike Denominator, you need to simplify this equation, whichyou've jotted down in your notes... frankenvegan won't wake up for anyone withoutmad math skills... and a lot of electricity. your electric billis huge... but yeah, simplify this equation: f over sixplus two f over seven.

just like we can break frankenvegan up intoa few common parts... a couple of legs, two kidneys, three arms... wait, something's wronghere... anyway, we have to find the least common multiplein the denominator of these two fractions. we do that by listing the multiples of eachnumber, starting with the number times one, then times two, and so on. like this: using lcm, we can see that the least commonmultiple for 6 and 7 is 42. you can also just multiply 6 and 7... thatwould have been a lot faster in this case... but frankenvegan isn't going anywhere.now we need to make each fraction have the same denominator so that we can add them.

first, multiply f over six by seven over seven,which equals seven f over forty-two. then multiply two f over seven by six oversix to get twelve f over forty-two. now that we have the body parts sorted andthe fractions with the same denominators, we can add the two equations together. remember that when you add fractions, youdo not add the denominators, only the numerators seven f plus twelve f equals nineteen f overforty two. this cannot be reduced, so the answer is 19f/42congratulations. frankenvegan is aliiiiiive! and he craves tofu.