Question

(15 : 3,75 + 10,5 : 1,5 * 3/14) : (1 целая 33/52 - 1 целая 1/4) по действиям

Answer 1

$(15 \div 3.75 + 10.5 \div 1.5 \times \frac{3}{14} ) \div$

$\div (1 \frac{33}{52} - 1 \frac{1}{4} ).$

решаем по действиям :

$1)15 \div 3.75 = \frac{15}{3.75} = \frac{1500}{375} = 4.$

$2)10.5 \div 1.5 = \frac{10.5}{1.5} = \frac{105}{15} = 7.$

$3)7 \times \frac{3}{14} = \frac{21}{14} = \frac{3}{2} = 1 \frac{1}{2} .$

$4)4 + 1 \frac{1}{2} = 5 \frac{1}{2} .$

$5)1 \frac{33}{52} - 1 \frac{1}{4} = \frac{85}{52} - \frac{5}{4} = \frac{85}{52} - \frac{65}{52} = \frac{20}{52} =$

$= \frac{5}{13} .$

$6)5 \frac{1}{2} \div \frac{5}{13} = \frac{11}{2} \div \frac{5}{13} = \frac{11}{2} \times \frac{13}{5} = \frac{143}{10} =$

$= 14 \frac{3}{10} .$

$14 \frac{3}{10} (14.3)$

Ответ :

$14 \frac{3}{10} .$