Answers

2015-05-07T14:19:24+05:30
Formula for finding rational numbers between two numbers is a+b/2
-2/3+(-2/5)=-16/15
2nd rational number is -16/15+(-2/5)=-22/15
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2015-05-07T14:46:25+05:30
Numbers we use the formula q2 = 1/2 ( a +q1) 
let us consider a = - 2/3 & b = -2/5 
to find q1 = 1/2 ( -2/3 + (-2/5) ) 
q1 = 1/2 (( -10-6)/15)    [tsking l.c.m]
q1 = - 8/ 15 
now let us find q2 = 1/2 (-2/3 + (- 8/15) ) 
q2 = 1/2 ((-10-8)/ 15))
q2 = 1/2 (-18/15) 
q2 = -3/5 
therefore the numbers are -8/15 & -3/5
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