Question

13/5 + 42/9 + 23/7 solve expression
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Answer 1

Step-by-step explanation:

give me brainlest answer

Answer 2

$\Huge\rm{answeR:}$

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$\bf{{\underline{To~solve}}:}$

• $\sf{{\dfrac{13}{5}}+{\dfrac{42}{9}}+{\dfrac{23}{7}}}$

$\bf{{\underline{Solution}}:}$

$\sf \frac{13}{5} + \bigg( \frac{42}{9} + \frac{23}{7} \bigg) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\ \\ \sf = \frac{13}{5} + \bigg( \frac{(42 \times 7 ) + (23 \times 9)}{63} \bigg) \: \: \: \: \: \: \: { \tt{LCM = 63}} \\ \\ \sf = \frac{13}{5} + \bigg( \frac{294 + 207}{63} \bigg)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \\ \\ \sf = \frac{13}{5} + \frac{501}{63}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \\ \\ \sf = \frac{(13 \times 63) + (501 \times 5)}{315}\: \: \: \: \: \: \: { \tt{LCM = 315}} ~~~~~~~~~ \\ \\ \sf = \frac{819 + 2505}{315} ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\ \\ \sf = \underline{ \underline{ \boxed{ \bf \frac{3324}{315}}}}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~$