Please help me solve this fractions. (show your work)​

23: 21  25: 1

Step-by-step explanation:

Question 23:

1) add the whole numbers together: 15+5=20

2)To add fractions, both need to have the same denominator. Find a number that is a multiple of both denominators (in this case 55)

→ (multiply the numerator and denominator by 5)

→ (multiply the numerator and denominator by 11)

3) add the fractions together

+ = (add the numerators)

4) Turn the improper fraction into a mixed number

Divide 78 by 55. You'll get a whole number and a remainder. The remainder is the new numerator: In this case 55 enters 78 once with a remainder of 23. Therefore:

1

5) Add the whole numbers together to get the final

20+1= 21

21

Question 25:

Follow the above steps but subtract instead of adding

x

step-by-step explanation:

27/4x^6 y^8

step-by-step explanation:

4(3x^2y^4)^3 (2x^3y^5)^4

=

108x^6 y^12 /16x^12 y^20

=

108 /16x^6 y^8

=

27 /4x^6 y^8