Magnitogorskru

Verified answer

10,2:(18,5-(5 2/3*1,75-3 2/3*1,75):2 1/3);/// 1)5ц2/3*1,75=17/3*175/100=2975/300;// 2)3 2/3*1,75=11/3*175/100=1925/300;/// 3)2975/300-1925/300=1050/300=35/10=7/2;// 4)7/2:2 1/3=7/2*3/7=3/2=1,5;/// 5)18,5-1,5=17;// 6)10,2:17=0,6;// Ответ: 0,6

Nastya171167 1)5 2/3*1,75=17/3*1,75=17/3*1 75/100= 17/3*175/100=17/3 *  7/4 =  119/12 = 9 11/12
2)3 2/3*1,75=3 2/3  *1 75/100 = 11/3  * 7/4 =  77/12 = 6 5/12
3)9 11/12  -  6 5/12 = 119/12  -  77/12 =  42/12 = 7/2 = 3 1/2=3,5
4)3 1/2  ÷  2 1/3 = 7/2  ÷  7/3 = 7/2  ×  3/7 = 21/14= 3/2 = 1 1/2=1,5
5)18,5-1,5=17
10,2÷17=0,6
ответ : 0,6