1) (-4)-(-1/2) 2 ) 1/5-(0,2) 4( -0,25-(-3/4) 3) -3/8-5/12 5)1 1/4 +3 3/4 19/07/2021 Bởi Arya 1) (-4)-(-1/2) 2 ) 1/5-(0,2) 4( -0,25-(-3/4) 3) -3/8-5/12 5)1 1/4 +3 3/4
1)(-4)-(-$\frac{1}{2}$)=(-4)+($\frac{1}{2}$)=-$\frac{7}{2}$ 2)$\frac{1}{5}$-(0,2)=$\frac{1}{5}$-$\frac{1}{5}$=0 3)-$\frac{3}{8}$-$\frac{5}{12}$=-$\frac{19}{24}$ 4)-0,25-(-$\frac{3}{4}$)=-$\frac{1}{4}$+(-$\frac{3}{4}$)=$\frac{1}{2}$ 5)1$\frac{1}{4}$+3$\frac{3}{4}$=4$\frac{4}{4}$=5 Bình luận
1) (-4)-(-`1/2`) = (-4)+`1/2` = `-7/2` 2 ) `1/5`-(0,2) = `1/5`- `1/5` = 0 3) `-3/8`-`5/12` = `-19/24` 4) -0,25-(-`3/4`) = -0,25 + `3/4` = -0,25+0,25 = 0 5)1 `1/4` +3 `3/4` = `5/4`+`15/4` = `20/4` = 5 XIN câu trả lời hay nhất Bình luận
1)(-4)-(-$\frac{1}{2}$)=(-4)+($\frac{1}{2}$)=-$\frac{7}{2}$
2)$\frac{1}{5}$-(0,2)=$\frac{1}{5}$-$\frac{1}{5}$=0
3)-$\frac{3}{8}$-$\frac{5}{12}$=-$\frac{19}{24}$
4)-0,25-(-$\frac{3}{4}$)=-$\frac{1}{4}$+(-$\frac{3}{4}$)=$\frac{1}{2}$
5)1$\frac{1}{4}$+3$\frac{3}{4}$=4$\frac{4}{4}$=5
1) (-4)-(-`1/2`) = (-4)+`1/2` = `-7/2`
2 ) `1/5`-(0,2) = `1/5`- `1/5` = 0
3) `-3/8`-`5/12` = `-19/24`
4) -0,25-(-`3/4`) = -0,25 + `3/4` = -0,25+0,25 = 0
5)1 `1/4` +3 `3/4` = `5/4`+`15/4` = `20/4` = 5
XIN câu trả lời hay nhất