Tolong jawab nomer 4-7 yaaa

Tolong jawab nomer 4-7 yaaa

No. 4
$3 frac{2}{5} div 1 frac{1}{2} = frac{17}{5} div frac{3}{2} = frac{17}{5} times frac{2}{3} = frac{34}{15} = 2 frac{4}{15}$
no. 5
$3 frac{5}{6} times 2 frac{1}{2} = frac{23}{6} times frac{5}{2} = frac{115}{12} div 1 frac{3}{4} = frac{115}{12} div frac{7}{3} \ = frac{115}{12} times frac{3}{7} = frac{345}{84} = 4 frac{9}{84} = 4 frac{3}{28}$
no. 6
5-3=2
-Uang B
$frac{5}{2} times 40.000 = 100.000$
-Uang A
$frac{3}{2} times 40.000 = 60.000$
no. 7
4,2×0,02=42/10×2/100=84/1000
84/1000:0,5=84/1000:5/10=84/1000×10/5=840/5000=42/250=21/125

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