Question

the sum of two rational numbers is -13by33.if one of them is -7by11.find the other

Answer 1

if one no. is given

let the required no. be x then,

$\frac{ - 7}{11} + x = \frac{ - 13}{3 3} \\ \\ x = \frac{ - 13}{33} + \frac{7}{11} \\ \\ x = \frac{ - 13 + 21}{33} \\ \\ x = \frac{8}{33}$







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Answer 2

let the other no. be x
therefore, x+(-7)/11 = -13/33
x = -13/33 + 7/11
x = -13 + 21/33
x = 8/33