Question

Вычислите е) 8 3/5 + 1/15

ж) 7 + 3 5/8

з) 2/3 + 4 3/5
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Answer 1

8 3/5 + 1/15 = 8 9/15 + 1/15 = 8 10/15 = 8 2/3

7 + 3 5/8 = 10 5/8

2/3 + 4 3/5 = 4 19/15 = 5 4/15

Answer 2

8 3/5+1/15=

$\frac{8 \times 5 + 3}{5} + \frac{1}{15} = \frac{130}{15} = \frac{26 \times 5}{3 \times 5} = \frac{26}{3 } = 8 \frac{2}{3}$

7+3 5/8=10 5/8

2/3+4 3/5=2/3+4*5+3/5=79/15=5 4/15