Question

what number should the sum of 18/5 and 7/15 be divided to get 47/6 *​

Answer 1

Sum= 18/5 + (-7)/15 ( By Taking lcm )

= 54/15 + (-7)/15

= 47/15

now let the rational no. be x

Therefore According to question:

47/15 ÷ x = 47/6

47/15 = 47/6× x

47/15 × 6/47 = x

x = 2/5

Therefore the rational is 2/5

Answer 2

(18/5+17/15) /X=47/6

(71/15) / X= 47/6

X= (71×6) / (47×15) = 0.604