x x
----- + -----
ab ac
x x
----- - ------
xy xz
2m 3n
------ + -----
ax bx
5a 3b
----- - ------
mn mp
Дам 20 б
----- + -----
ab ac
x x
----- - ------
xy xz
2m 3n
------ + -----
ax bx
5a 3b
----- - ------
mn mp
Дам 20 б
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Answers & Comments
х/ху-х/хz=(xz-xy)/xyz=x(z-y)/xyz=(z-y)/yz;
2m/ax+3n/bx=(2bm+3an)/abx;
5a/mn-3b/mp=(5ap-3bn)/mnp;