Question

a)\(\frac{637x527-189}{526x637+448}\)

b)\(\frac{135x269-133}{134x269+136}\)

Answer 1

a)=\(\frac{637x\left(526+1\right)-189}{526x637+448}\)

=\(\frac{637x526+637-189}{526x637+448}\)

=\(\frac{637x526+448}{526x637+448}\)

=\(1\)(vì tử số =mẫu số)

b)=\(\frac{\left(134+1\right)x269-133}{134x269+136}\)

=\(\frac{134x269+269-133}{134x269+136}\)

=\(\frac{134x269+136}{134x269+136}\)

=1(vì tử số =mẫu số)