Answer :
Convert 3/4 and 1/10 to have the same denominator. You'll get 15/20 and 2/20.
Divide 15 by 2 and you get 7 with a remainder of 1, which means that there can be 7 pieces cut with 1/10 meter of wood left.
Divide 15 by 2 and you get 7 with a remainder of 1, which means that there can be 7 pieces cut with 1/10 meter of wood left.