Обчисліть: (1 1/3)8 : (1 7/9)3 - (1 1/3)9 * (-27/64)3

33 3/16

1 1/3 ·8÷1 7/9 ·3-1 1/3 ·9·(-27/64)·3=18-(-15 3/16)=18+15 3/16=33 3/16

1. 1 1/3 ·8=4/3 ·8=32/3

2. 32/3 ÷1 7/9=32/3 ·9/16=2·3=6

3. 6·3=18

4. 1 1/3 ·9=4/3·9=4·3=12

5. 12·(-27/64)=(3·(-27))/16=-81/16

6. -81/16 ·3=-243/16=-15 3/16