Question

The sum of 1/8 and2/5 of a rational number is 3 find the rational number

Answer 1

Step-by-step explanation:

1/8x + 2/5x = 3

or, 21/40x = 3

or, x = 3×40/21 = 40/7

Answer 2

Answer:

120/21=40/7

Step-by-step explanation:

(1/8)*x+(2/5)*x=3

(x/8)+(2x/5)=>(5x+16x)/40=3

21x=120=>x=120/21=>40/7

(1/8)(40/7)=5/7

(2/5)(40/7)=16/7

(5+16)/7=21/7=>3

Therefore, the fraction is 40/7

Hope you understand my answer.......

Kindly mark my answer as the brainliest..........