Answers

2015-06-27T15:27:52+05:30
I. 1/3 - 3/4 
    taking L.C.M
    (4 - 9) /12 
   -5/12
ii) -32/13 from 2
   2+ 32/13
26+32/13
58/13
 
iii) -4/7 - (7) 
-4/7 + 7 
(-4 + 49) /7 
45/7

0
2015-06-27T15:27:56+05:30
i.1/3-3/4
=(1*4-3*3)/12
=(4-9)/12=-5/12
---------------------------------

ii.2-(-32/13)
=2+32/13
=(2*13+32)/13
=(26+32)/13
=58/13= 4 8/13.
----------------------------

iii.-4/7-(-7)
=-4/7+7
=7-4/7
=(7*7-4)/7
=(49-4)/7
=45/7
=6 3/7
----------------------------

1 5 1