Find the least common denominator for these fractions. 5/7 and 4/6

Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f – 52 = 63 b. f – 63 = 52 c. 63 – f = 52 d. f – 63 = –52

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

What is the missing step in this proof ?