Insert parentheses into the expresstion 15+3-6×4 to make it equal 48​

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

The length and width of a rectangle are consecutive even integers the area of the rectangle is 120 squares units what are the length and width of the rectangle

What’s the answer ? use the picture to see the problem