adding and subtracting rational numbers

Front

⁸/₁₅  +  (-⁶/₁₅)

Back

2/15

Front

¼ − (-¾) =

Back

1

Front

-1/2 + 2/3 =

Back

1/6

Front

-6.5 + (-0.5)

Back

-7

Front

When adding rational numbers with the same sign, you must:

Back

Add together and keep the sign

Front

34.5 + (-7)

Back

27.5

Front

-8⅚ + -2⅕

Back

-11 1/30

Front

-3½ - 4½ =

Back

-8

Front

-6.23 - 7.5

Back

-13.73

Front

What is the difference of the given problem?

Back