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yan [13]
3 years ago
11

Need help ASAP, due today.

Mathematics
1 answer:
Finger [1]3 years ago
6 0

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

--------------------------------

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

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