Step : Finding the other rational number
Given sum of two rational number is 1124 and one of them is 38.
Hence the other rational number = Sum of two rational number - one of the rational numbers.
=1124−38
=1124−3×38×3 [∵LCM of 8,24=24]
=1124−924
=11−924
=224=112
Hence the other rational number is 112.