Answer:
528
Step-by-step explanation:
(80:100)*660 =
(80*660):100 =
52800:100 = 528
Now we have: 80 percent of 660 = 528
0.25 in a fraction would be 1/4
Answer:
-6x(-7)( negative and negative = positive)
Step-by-step explanation:
-6x4= -24
-6x(-7) = 42
-3x8= -24
6x(-4) = -24
We have to add 8/15 to 2/5.
To add two fractions we have to make them have the same denominator, so we have to convert 2/5 to have a denominator of 15. To do this, we have to multiply 2/5 by 3 and then we can add the fractions:

Answer: 14/15