Question

72×5/12= × 5×1/12= ×1/12= 360/ =

Answer 1

72×5/12=(72)×5×1/12=(360)×1/12=360/(12)=30

Answer 2

$72\cdot\dfrac{5}{12} =72\cdot5\cdot\dfrac{1}{12}= 360\cdot\dfrac{1}{12} =\dfrac{360}{12} =30$