Question

Hernan cuts a board that is 7/10 of a meter long After the cut the board is 3/10 of a meter long how long is the piece that he cut of

Answer 1

the answer is  it was 2/5 meters long

Answer 2

Given that original lenght of the board before cut
`= (7)/(10)`meter

Lenght of the board that is left after cutting from the original piece by Hernan
`= (3)/(10)`meter

Now we have to find the lenght of the piece which is cut.

To find that we just need to subtract smaller piece from larger piece

Required Length
`= (7)/(10)-(3)/(10)`meter

Required Length
`= (7-3)/(10)`meter

Required Length
`= (4)/(10)`meter

reduce the fraction

Required Length
`= (2)/(5)`meter

Hence final answer is
`(2)/(5)` meter.