Question

mk Ðang can gap

Answer 1

1:

a: =7/30+23/30-12/37-25/37

=1-1=0

b: =1/2-4/9+5/18+1

=9/18-8/18+5/18+1

=1+1/2=3/2

c: =-20/23-3/23+2/3+2/5+7/15

=-1+10/15+6/15+7/15

=-1+23/15=8/15

d: =4/3+3/10-2/5-1

=1/3+3/10-2/5

=10/30+9/30-12/30=7/30

e: =5/7(5/11+2/11-14/11)

=-7/11*5/7=-5/11

f: =-5/4(2/11+9/11)+7/4

=7/4-5/4=1/2

g: =-5/7(3/13+10/13)+1+5/7=1

h: =7/4*4+3+2/13

=10+2/13

=132/13