Question

найдите значение выражения

Answer 1

1) 9/35 - 3/28 = 36/140 - 15/140 = 21/140 = 3/20 
2) 7/20 - 3/20 = 4/20 = 1/5 ( Ответ )
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1) 21/22 - 5/11 = 21/22 - 10/22 = 11/22 = 1/2 
2) 22/39 - 3/13 = 22/39 - 9/39 = 13/39 = 1/3 
3) 1/2 - 1/3 = 3/6 - 2/6 = 1/6 ( Ответ )