1. 8 2/5 - 2,8 - 7/2 +1,6 =
2. 10 1/2 - 1/4=![]()
2. 10 1/2 - 1/4=
1. 8 2/5 - 2,8 - 7/2 + 1,6
= 42/5 - 28/10 - 7/2 + 16/10
= 84/10 - 28/10 - 35/10 + 16/10
= (84 - 28 - 35 + 16)/10
= 37/10
= 3 7/10
_
2. 10 1/2 - 1/4
= 21/2 - 1/4
= 42/4 - 1/4
= 41/4
= 10 1/4
[answer.2.content]
