Question

1-7/10=1-1/15=3/10-14/15=​

Answer 1

Ответ:

Пошаговое объяснение:

1-7/10=10/10-7/10=3/10

1-1/15=15/15-1/15=14/15

3/10-14/15=9/30-28/30=-(19/30)

Answer 2

Let's break down each of these calculations step by step:

1. 1 - 7/10: To subtract fractions, you need a common denominator. In this case, the common denominator is 10. 1 - 7/10 = 10/10 - 7/10 = (10 - 7)/10 = 3/10

2. 1 - 1/15: Again, we need a common denominator. The common denominator is 15. 1 - 1/15 = 15/15 - 1/15 = (15 - 1)/15 = 14/15

3. 3/10 - 14/15: To subtract these fractions, you also need a common denominator. The least common denominator for 10 and 15 is 30. To make both fractions have a denominator of 30, you can convert 3/10 to 9/30 (by multiplying both the numerator and denominator by 3) and 14/15 to 28/30 (by multiplying both the numerator and denominator by 2). Now, you can subtract them: 9/30 - 28/30 = (9 - 28)/30 = -19/30

So, the final results of these calculations are: 1 - 7/10 = 3/10 1 - 1/15 = 14/15 3/10 - 14/15 = -19/30