Find the least common denominator of the following pair of fractions: 1/2 4/5. ASAP
a. 7 b. 20 c. 30 d. 10

10

Step-by-step explanation:

1/2  4/5 turn into

5/10   8/10

since 10 is the denominator 2*5 =10 so take the 5 and times by the numerator or 1 to make the 5

5*2 is 10 so take 2 times the numerator (4) to make 8

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step-by-step explanation:

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).