Question

Need help ASAP, due today.

So I have to answer these questions but there are a LOT to answer. Please help me shave off time on this. Sorry if my handwriting is messy I wrote this fast. Thank you!

Answer 1

Q.17)

$(-\frac{12}{25})\frac{15}{32} = (-\frac{3}{5}) \frac{3}{8}=-\frac{9}{40}$

Q.18

$(-\frac{3}{5})(-\frac{1}{3})=(\frac{1}{5})(\frac{1}{1})=\frac{1}{5}$

Q.19

$(-\frac{4}{7})(-\frac{1}{20})=(\frac{1}{7})(\frac{1}{5})=\frac{1}{35}$

Q.20

$(3\frac{1}{3})(\frac{1}{4})=(\frac{10}{3})(\frac{1}{4})=(\frac{5}{3})(\frac{1}{2})=\frac{5}{6})$

Q.21

$(4\frac{1}{4})(3\frac{1}{3})=(\frac{17}{4})(\frac{10}{3})=(\frac{17}{2})(\frac{5}{3})=\frac{85}{6}$

For the 17 times 5 part, a easy way to do it is to times 17 by 10, then divide by 2. (since 5 = 10 divided by 2)

So 17 x 10 = 170

170 / 2 = 85

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If you have any questions, don't hesitate to ask : )