Question

Mutiply in rational number​

Answer 1

Answer:

$\frac{-23}{120}$

Step-by-step explanation:

$(\frac{3}{5}*\frac{-10}{9})+(\frac{-4}{5}*\frac{1}{-8})-(\frac{2}{5}*\frac{-15}{16})\\\\(\frac{1}{1}*\frac{-2}{3})+(\frac{-1}{5}*\frac{1}{-2})-(\frac{1}{1}*\frac{-3}{8})\\\\\frac{-2}{3} +\frac{1}{10} -\frac{-3}{8}\\\\\frac{-2}{3} +\frac{1}{10} +\frac{3}{8}\\\\\frac{-80}{120} +\frac{12}{120} +\frac{45}{120}\\\\\frac{-68}{120} +\frac{45}{120}\\\\\frac{-23}{120}$

Hope this helps!

Answer 2

Answer:

49/120

Step-by-step explanation:

see image.

Simplify first. Then get a common denominator, this is 120 in this case. 120 is the smallest number that all the denominators (3 and 8 and 10) go into. To add fractions, add all the top numbers (numerators). Keep the same denominator. see image.