Question

15 9/13 + 17 20/39

Answer 1

\(\large\color{black}{ \displaystyle 15\frac{9 }{13} =17\frac{20 }{39} }\) like this?

Answer 2

yes.

Answer 3

but a plus sign

Answer 4

\(\large\color{black}{ \displaystyle 15\frac{9 }{13}+17\frac{20 }{39} }\)

didn't press SHift hard enough

Answer 5

would you agree that this is same as

\(\large\color{black}{ \displaystyle 15+\frac{9 }{13}+17+\frac{20 }{39} }\) ?

Answer 6

yes, i think

Answer 7

good

Answer 8

now, we can change the order (it doesn't matter what to add first).

\(\large\color{black}{ \displaystyle 15+17+\frac{9 }{13}+\frac{20 }{39} }\)

Answer 9

first add 15 + 17

Answer 10

\(\large\color{black}{ \displaystyle 32+\frac{9 }{13}+\frac{20 }{39} }\)

Answer 11

then you need is a common denominator between the fractions.

Answer 12

I will give you a hint: \(13\times 3 = 39\)