Question

[Hoàng Ngọc Khánh]

a) 6 x 1/3 ( một phần ba ) + 0,75 + 3/4 : 0,25

b) 19,5 x 2,2 + 8,8 x 19,5 - 19,5 

Answer 1

[nguyen thi hien]

\(a,6\cdot\frac{1}{3}+0,75+\frac{3}{4}:0,25\)

\(< =>6\cdot\frac{1}{3}+\frac{3}{4}+\frac{3}{4}:\frac{1}{4}\)

\(< =>2+\frac{3}{4}:\frac{1}{4}\)

\(< =>2+3\)

\(< =>5\)

\(b,19,5\cdot2,2+8,8\cdot19,5-19,5\)

\(< =>42,9+171,6-19,5\)

\(< =>214,5-19,5\)

\(< =>195\)