Start with 1/2 and add or subtract the fractions along the path, always moving down or to the right. the objective is to obtain a total of 1 after having added the last fraction 1/12.

The common denominator is 24, let's write 24 times the fractions here

12 10 -7 6

8 -9  4  1

-4 6  5  2

There are four simple paths, one for each of our columns.  Their sums are 29, 26, 20, 24

24 means 24/24 or 1, that's the one.  1/2 + 5/12 + -7/24 + 1/4 + 1/24 + 1/12 = 1

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest