Answer:
number 4 i gess
Step-by-step explanation:
4/5
just take 16/20 and divde both be 4
Answer:
It subtracts
Step-by-step explanation:
1)Calculate the product:
21a + 10a - 3a
2)Collect like terms:
28a
Answer:
28a
Answer:

Step-by-step explanation:
We want to simplify:

We convert to improper fraction to get:

We now deal with the parenthesis by multiplying with the reciprocal of 2.

This gives:

We multiply to get:

This simplfies to:

We write as mixed number
