Rewrite addition equation with whole number and fraction part separated

3 +

1

7

+ 10 +

3

9

Solve the whole number parts

3 + 10 = 13

Now, solve the fraction parts

1

7

+

3

9

Least Common Denominator (LCD) of 7 and 9 is 63.

Now, we have to make sure both fractions have the same new denominator 63.

You can write fraction

1

7

as

1x9

7x9

=

9

63

You can write fraction

3

9

as

3x7

9x7

=

21

63

Now, both fractions have same denominator and we are ready to add

9

63

+

21

63

=

9+21

63

=

30

63

That can be simplified to

=

10

21

Combine whole numbers and fraction parts

13 +

10

21

= 13

10

21