25+26+100:100000:200*56:60

25+26+100:100000:200*56:60 =

=51 7/750000.

1)) 100: 100000 = 100/100000 = 1/1000

2)) 1/1000:200 = 1/1000• 1/200=

1/200000

3)) 1/200000•56 = 56/200000=

Сокращаем на 8

= 7/25000

4)) 7/25000: 60 = 7/25000• 1/60=

7/1500000

5)) 25+26 + 7/1500000=

51 + 7/1500000 = 51 7/1500000.

Или так

25+26+100:100000:200*56:60=

25+26+100/1• 1/10000• 1/200• 56/1• 1/60=

Сокращаем. 100 и 200 на 100; 56 и 60 на 4

51 + 1/1• 1/100000• 1/2• 14/1• 1/15=

Сокращаем 2 и 14 на 2.

51 + 1/1• 1/100000• 1/1• 7/1• 1/15=

51 + 7/1500000 = 51 7/1500000.