Question

tính nhanh 

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

làm nhanh giúp mình nha

Answer 1

\(b=\frac{637.527-189}{526.637+448}\)

\(b=\frac{637.\left(526+1\right)-189}{526.637+448}\)

\(b=\frac{637.526+\left(637-189\right)}{526.637+448}\)

\(b=\frac{637.526+448}{526.637+448}=1\)

Dấu . là nhân nha

Answer 2

\(\frac{637.527-189}{526.637+448}=\frac{637.526+637-189}{526.637+448}=\frac{637.526+448}{526.637+448}=1\)

Answer 3

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

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

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

\(B=\frac{637x526+448}{526x637+448}=1\)

Answer 4

\(\frac{637.526-189}{526.637+448}=\frac{637.526+637-189}{526.637+448}=\frac{637.526+448}{526.637+448}=1\)

Đúng ko? Chúc bạn học tốt!

Answer 5

\(b=\frac{637\times527-189}{526\times637+448}=\frac{637\times527-189}{526\times637+637-189}=\frac{637\times527-189}{527\times637-189}=1\)