Question

Find the multiplicative inverse of (-5) upon 7 ÷ (-15) upon 28​

Answer 1

Answer:

-5/7/-15/28

=-5/7×28/-15

=8/7

=1.14285

Answer 2

${\fbox{\fbox{\sf\huge\blue{☞QueSTiOn}}}}$

$\sf\purple{→Find\:the\: multiplicative\:inverse \:of\:}$$\sf\purple{\frac{(-5)}{7}÷{\frac{(-15)}{28}}}$

${\fbox{\fbox{\sf\huge\red{☞AnsWeR}}}}$

First let's solve

☞$\sf\pink{\frac{(-5)}{7}÷{\frac{(-15)}{28}}}$

☞$\sf\green{\frac{(-5)}{7}×{\frac{28}{(-15)}}}$

☞$\sf\orange{\frac{(-4)}{(-3)}=>{\frac{4}{3}}}$

Now,

$\sf\blue{: . , \:the\: multiplicative\:inverse \:of\:{\frac{(-5)}{7}÷{\frac{(-15)}{28}}}}$

$\sf\pink{=>\frac{5}{3}}$

REMEMBER-:

• ᴛʜᴇ ᴍᴜʟᴛɪᴘʟɪᴄᴀᴛɪᴠᴇ ɪɴᴠᴇʀsᴇ ᴏғ ᴀ ɴᴜᴍʙᴇʀ sᴀʏ, ɴ ɪs ʀᴇᴘʀᴇsᴇɴᴛᴇᴅ ʙʏ$\sf{ \frac{1}{ɴ} \:ᴏʀ\: ɴ^{-1}. }$

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