Question

найдите 20% от 7/15 дробей

Answer 1

7/15:100×20=7/15×1/100×20=7/1500×20/1=140/1500=14/150=7/75

Answer 2

7/15-------100%
x------------20%
20%=0,2=1/5
1/5*7/15=7/75