Answer:
Step-by-step explanation:



21/4 is equivalent to...
4 x 5 = 20
so, 21/4 = 5 1/4
5 1/4 = 5.25
5 1/4 = 5 2/8 = 42/8
42/8 = 84/16
Rules for adding: if the bases are the same you can add them, and subtracting happens in a fraction
ill help but where is the clock?
Answer:
19/8
Step-by-step explanation:
8x-7=-12
8x=19
x=19/8