Joe, thea, and taylor invested in a partnership in the ratio 1: 4: 7. years later, when the partnership was worth $1.6 million, thea decides to sell her part of the partnership to joe
a) how much would joe need to pay thea to buy her share of the shares?
b) what percent of the business will joe own after buys theas portion?

1:4:7...total = 12

1/12 = Joe
4/12 = thea
7/12 = taylor

1/12 * 1,600,000 = 133,333.33 -- Joe's share
4/12 * 1,600,000 = 533,333.33 -- thea's share
7/12 * 1,600,000 = 933,333.33 -- taylors share

total = 1,599,999.99 rounds to 1,600,000.00 or 1.6 mil

to buy thea's share, Joe would need $ 533,333.33.
after buying thea's portion, Joe will own (1/12 + 4/12) = 5/12 = 0.416 =
41.6%

Just divide the x axis (the top) by 2 or multiply the y axis (the bottom) by 2