Help please asp I’m helping my you her sister

15/4=3.75

Step-by-step explanation:

4.5 = 9/2 = 18/4

18/4 - 3/4 =

15/4=

=3.75

19/4 - 3/4 = 15/4 = 3 3/4

Step-by-step explanation:

4 1/2 =9/2

For subtraction or addition fractions you need to find a common domintor (the bottom number)

9/2 ×2 =19/4

19/4 -3/4=15/4= 3 3/4

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value