Prove the sum of two rational numbers is rational where a, b, c, and d are integers and b and d cannot be zero.
steps reasons
1. a over b plus c over d given
2. ad over bd plus cb over bd
3. ad plus cb all over bd simplify
fill in the missing reason in the proof.
multiply to get a common denominator.
add to get a common denominator.
distribute d to all terms.
add d to all terms.

u bout ugly as   a mf

step-by-step explanation: lol

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584