Question

Using the appropriate properties of addition, find the value of each of the following sums:
(ii)4/5+3/10+11/5+(-13)/10
(iii) 2/3+(-11/8)+(-17)/3+3/8
(iv) 7/8+3/10+(-5/8)+(-7/20)

Please Answer Correctly...​

Answer 1

Answer:

(i) 4\5+11\5+3\10+(-13)\10

=15\5+(-10)\10

=4+(-1)

=4-1

=3

(ii)2\3+(-17)\3+(-11)\8+3\8

=-15\3+(-8)\8

=-5+(-1)

=-5-1

=-6

(iii)7\8+(-5)\8+3\10+(-7)\20

=2\8+2×3\10+(-7)\20

=2\8+6\20+(-7)\20

=1\4+(-1)\20

=1\4-1\20

=0.2