A business woman uses 1/3 of the floor of an office building. She needs to use 5/8 of the floor to expand her business. How much of the space that she needs does she currently use?
they both go into 24ths so 1/3 equals 8/24 and 5/8 equals 15/24 so 15 minus 8 =7 she needs 7 more to expand and she owns 8/15ths of what she needs to expand