Question

Выполните действия 1) 27*5\9,2)9 3\7,3)14: 7\8,4)3\16: 5\12 5)4цел1\2: 1цел1\2,6)4цел3\4: 3

Answer 1

1)27*5/9=27/1*5/9=15
3)14:7\8=14*8/7=16
4)3\16:5\12=3\16*12\5=9\20
5)4цел1\2:1цел1\2=9\2:3\2=9\2*2\3=3
6)4цел3\4:3=19\4:3=19\419\12*1\3=19\12

Answer 2

$1) \: \: \: 27 \times \frac{5}{9} = \frac{27 \times 5}{9} = 3 \times 5 = 15 \\ 2) \: \: \: 93 \div 7 = \frac{93}{7} = 13 \frac{2}{7} \\ 3) \: \: \: 14 \div \frac{7}{8} = \frac{14 \times 8}{7} = 2 \times 8 = 16 \\$
$4) \: \: \: \frac{3}{16} \div \frac{5}{12} = \frac{3 \times 12}{16 \times 5} = \frac{3 \times 3}{4 \times 5} = \frac{9}{20} \\ 5) \: \: \: 4 \frac{1}{2} \div 1 \frac{1}{2} = \frac{9}{2} \div \frac{3}{2} = \frac{9 \times 2}{2 \times 3} = 3 \\ 6) \: \: \: 4 \frac{3}{4} \div 3 = \frac{19}{4} \times \frac{1}{3} = \frac{19}{12} = 1 \frac{7}{12}$