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

Given that original lenght of the board before cut $= \frac{7}{10}$meter

Lenght of the board that is left after cutting from the original piece by Hernan $= \frac{3}{10}$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 $= \frac{7}{10}-\frac{3}{10}$meter

Required Length $= \frac{7-3}{10}$meter

Required Length$= \frac{4}{10}$meter

reduce the fraction

Required Length $= \frac{2}{5}$meter

Hence final answer is $\frac{2}{5}$ meter.

Answer 2

The answer is  it was 2/5 meters long