Question

the sum of three rational numbers is - 1/5. if two of the numbers are 3/10 and - 2/5. find the third number.​

Answer 1

Step-by-step explanation:

SOLUTION

LET THE THREE NO BE A, B AND C

SO A+B+C= -1/5

HERE A = 3/10 AND B = -2/5

SO 3/10+(-2/5)+ C = -1/5

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

3/10-4/10+C = -1/5 by lcm

-1/10 +C= -1/5

C = -1/5+1/10

C= -2/10+1/10 by lcm

= -1/10