7/18-1/45 13/25+0,35

Question

7/18-1/45


13/25+0,35

Answer 1

7/18-1/45 = 35/90 - 2/90 = 33/90 = 11/30

Comments

13/25+0.35 = 13/25+7/20=52/100+35/100=17/100=0.17

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НОК(25,20) = 100
100/25 = 4
100/20 = 5