Question

5/16+9/13=?

 

Answer 1

209/208

Answer 2

209/208

Answer 3

209 phần 208

Answer 4

5/16 + 9/13

= 5 x 13/ 16 x 13   +   9 x16/ 13 x 16

= 65/208 + 144/208

= 209/208

vậy 5/16 + 9/13 = 209/208

Answer 5

5/15 + 9/13

= 5 x 13 / 16 x 13 + 9 x 16 / 13 x 16

= 65/208 + 144/208

=209/208

Vậy 5/16 + 9/13 = 209/208