Question

only answer the 3rd one ​

Answer 1

Answer

First we do,

$→3 \times \frac{5}{63} - \frac{6}{21} \\ → \frac{15}{63} - \frac{6}{21} \: \: \: \: \: \: \:$

Now we solve,

$→ \frac{15}{63} - \frac{6}{21} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ → \frac{(15 \times 21) - (63 \times 6)}{63 \times 21} \\ → \frac{315 - 378}{1323} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ → \frac{ - 63}{1323}$

More required

$→0.04$

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