Question

the sum of two rational number is 2/5. if one of the number is 4/7 , find the number​

Answer 1

Step-by-step explanation:

x + (-4/7) = 2/5

x - 4/7= 2/5

x = 2/5 +4/7

x= (2×7+4×5)/ 7×5 {finding the lcm}

x = (14+20)/ 35

$x = \frac{34}{35}$