What fractions are equal to 2/3

4/6, 6/9, 8/12, 10/15 are all fractions equal to 2/3.

Step-by-step explanation: If you multiply both numerator and denominator in the fraction by any number, the new multiplied fraction will still be equal to the original fraction because fractions are proportionate.

For example: you can multiply 2/3 by 3.

2 x 3 = 6

3 x 3 = 9

6/9 is equal to 2/3 because the proportions are the same.

Another example: you can multiply 2/3 by 4.

2 x 4 = 8

3 x 4 = 12

8/12 is equal to 2/3 because, like before, the proportions are the same.

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).