Quiz +23/12 - 5/7.....................

Quiz +23/12 – 5/7…………………

3/12 – 5/7

= (12×5) + (3×7)/84

= 60 + 21/84

= 81/84

= 27/28

Jawaban :

$large tt = frac{3}{12} - frac{5}{7}$

$large tt = frac{1}{4} - frac{5}{7}$

$large tt = frac{7}{28} - frac{20}{28}$

$large tt = frac{7 - 20}{28}$

$large tt = - frac{13}{28}$