Question

 Mik đag cần gấp giúp mik nha

6/5 -1/4 + 4/5 - 3/4 + 1/2

Answer 1

Ta có \(\frac{6}{5}-\frac{1}{4}+\frac{4}{5}-\frac{3}{4}+\frac{1}{2}\)

\(=\left(\frac{6}{5}+\frac{4}{5}\right)-\left(\frac{1}{4}+\frac{3}{4}\right)+\frac{1}{2}\)

\(=2-1+\frac{1}{2}\)

\(=1+\frac{1}{2}\)

\(=\frac{3}{2}\)

Answer 2

\(\frac{6}{5}-\frac{1}{4}+\frac{4}{5}-\frac{3}{4}+\frac{1}{2}\)

\(=\left(\frac{6}{5}+\frac{4}{5}\right)-\left(\frac{1}{4}+\frac{3}{4}\right)+\frac{1}{2}\)

\(=\frac{10}{5}-\frac{4}{4}+\frac{1}{2}\)

\(=2-1+\frac{1}{2}\)

\(=1+\frac{1}{2}=\frac{3}{2}\)

Answer 3

Ghép cặp đi 6/5 với 4/5 và 1/4 với 3/4 ( nhớ chú ý dấu nha)

Answer 4

6/5 - 1/4 + 4/5 - 3/4 + 1/2

= (6/5 + 4/5) + (-1/4 - 3/4) + 1/2

= 2 - 1 + 1/2

= 1 + 1/2

= 3/2