help fast i will give 5 stars
Answer:
9 1/6
Step-by-step explanation:
2 1/2 * 3 2/3
Change each mixed number to an improper fraction
2 1/2 = (2*2+1) /2 = 5/2
3 2/3 = (3*3+2)/3 =11/3
5/2*11/3 = 55/6
Now we change back to a mixed number
6 goes into 55 9 times
9*6 =54 so there is 1 left over
9 1/6
Answer:
4 sets.
Step-by-step explanation:
We are asked to find the greatest number of sets you can make using 28 pens and 80 pencils.
To solve our given problem, we will find greatest common factor of 28 and 80.
Factors of 28: 1, 2, 4, 7, 14, 28.
Factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.
We can see that the greatest common factor of 28 and 80 is 4, therefore, you can make at-most 4 sets each having same number of pens and pencils.