Question

Adding and subtracting with unlike denominators. Add or subtract

Answer 1

How much longer than \[\frac{ 9 }{ 16 } \] inch is \[\frac{ 7 }{ 9 } inch? \]

Answer 2

you would have to subtract \[\color{blue}{ \frac{7}{9}-\frac{9}{16} }\] to find the difference between the 2.

find the least common denominator, it would be the product of 16 and 9.

\[\huge\color{blue}{ \frac{7}{9} -\frac{9}{16}} \]
\[ \huge\color{blue}{ \frac{7 \color{red} { \times 16 }}{9 \color{red} { \times 16 }} - \frac{9 \color{red} { \times 9 } }{16 \color{red} { \times 9 }} } \]

\[\huge\color{blue}{ \frac{112}{144} - \frac{81}{144} }\]now the denominators are the same
\[\huge\color{blue}{ \frac{112-81}{144} }\]
\[\huge\color{blue}{ \frac{31}{144} }\]

and there is your answer :)

Answer 3

THANKK YOUUUUUUU!!!!!!!!!!!! SO MUCH

Answer 4

Copy pasted? or superfast typer?
whatever, you welcome

Answer 5

Lol super fast

Answer 6

Alrighty, good luck with the rest.

Answer 7

hahaha thanks

Answer 8

np