\(\frac{637\times527-189}{526\times637+448}\)
\(=\frac{637\times526+527-189}{526\times637-189+637}\)
\(=\frac{1+527-189}{1-189+637}\)
\(=\frac{1-189+527}{1-189+637}\)
\(=\frac{527}{449}=\frac{339}{449}\)
~ Hok tốt ~
trả lời
=339/449
chúc bn
học tốt
Sr, mik làm lộn !
\(\frac{637\times527-189}{526\times637+488}\)
\(=\frac{637\times\left(526+1\right)-189}{526\times637+637-189}\)
\(=\frac{637\times526+637-189}{526\times637+637-189}\)
\(=1\)
~ Hok tốt ~