Question

como faz a conta 4/7 - 13/63 = 23/63​

Answer 1

$\LARGE\tt{} \dfrac{4}{7} - \dfrac{13}{63} \\ \\ \LARGE\tt{} \dfrac{4 \times 9}{7 \times 9} - \dfrac{13}{63} \\ \\ \LARGE\tt{} \dfrac{36}{63} - \dfrac{13}{63} \\ \\ \LARGE\tt{} \dfrac{36 - 13}{63} \\ \\ \\ \LARGE\tt{} {\large\boxed{\boxed{  { \LARGE \tt \dfrac{23}{63} }}}}$

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