Question

вычеслете 17/20-3/10-11/60​

Answer 1

Ответ:11/30

Пошаговое объяснение:

3/10=6/20

17/20 - 6/20= 11/20

11/20 =33/60

33/60-11/60=22/60

22/60=11/30

Answer 2

Пошаговое объяснение:

$\frac{17}{20} - \frac{3}{10} - \frac{11}{60} = \frac{11}{20} - \frac{11}{60} = \frac{11}{30}$

$1) \frac{17}{20} - \frac{3}{10} = \frac{17 \times 1}{20 \times 1} - \frac{3 \times 2}{10 \times 2} = \frac{17}{20} - \frac{6}{20} = \frac{17 - 6}{20} = \frac{11}{20}$

$\frac{11}{20} - \frac{11}{60} = \frac{11 \times 3}{20 \times 3} - \frac{11 \times 1}{60 \times 1} = \frac{33}{60} - \frac{11}{60} = \frac{33 - 11}{60} = \frac{22}{60} = \frac{11 \times 2}{30 \times 2} = \frac{11}{30}$