7/9 is the answer I believe
Find a number that both of the denominates make the same number for example if one denominator is 1/7 and the other is 2/6 then you
2/6 * 7 = 14 over 42 then the other one would be 1/7 *6 which would be 6 over 42 you find common denominators by finding a number both of the bottom ones can equal. hope this helps
Ashley lost approximately 0.53 pounds per day. After 30 days, she lost 16 pounds and 16/30=0.53
After 12 hours the pound would have 720 pounds of algae.

Katrina has read 85% of her book.