You haven't provided expressions, so I can work out the problem for you. When we divide fractions, remember always "keep, switch, flip!" That's what we're gonna do here. We keep the 2/5, switch the sign to multiplication, and flip the 7/8 to 8/7. Therefore, we have 2/5*8/7. That gives us 16/35. Hope this helps!
Hello here is a solution look graph : the curve : color blue the first tangent : y = 0.13x +1.87 color Pink the second tangent : y = 1.88 x +0.14 color green
