Question

calcula
A) 3/5-1/5
B) 3/7-1/7
C) 2/5-2/6
D) 2-3/10
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Answer 1

Respuesta:

Explicación paso a paso:

A) 2/5

B) 2/7

C) (2.6 - 2.5)/5.6

      2/30 = 1/15

D) 20/10 - 3/10 = 17/10

Answer 2

Explicación paso a paso:

1. 3/5-1/5
2. $\frac{3 - 1}{5} = \frac{2}{5}$
3. 3/7-1/7
4. $\frac{3 - 1}{7} = \frac{2}{7}$
5. 2/5-2/6
6. $\frac{2 \times 6}{5 \times 6} - \frac{2 \times 5}{6 \times 5} = \frac{12}{30} - \frac{10}{30} = \frac{12 - 10}{30} = \frac{2}{30} = \frac{1}{15}$
7. 2-3/10

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