Bài 1:
a) `3``\frac{5}{7}` `=` `26/7`
`4``\frac{2}{9}` `=` `38/9`
`23``\frac{5}{11}` `=` `258/11`
b) `23/5` `=` `4``\frac{3}{5}`
`67/10` `=` `6``\frac{7}{10}`
`313/100` `=` `3``\frac{13}{100}`
Bài 2:
a) `28/140` `=` `1/5` `=` `2/10`
`33/75` `=` `11/25` `=` `44/100`
`216/900` `=` `6/25` `=` `24/100`
b) `2``\frac{23}{75}` `=` `173/75` `=` ??? ( sai đề )
`4``\frac{216}{900}` `=` `106/25` `=` `424/100`
`5``\frac{28}{140}` `=` `26/5` `=` `52/10`