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=37/30= 1ц 7/30

Answer 2

Let's break down each part of the equation step by step:

1. 1 - 7/10: This is straightforward subtraction. To subtract fractions, you need a common denominator, which in this case is 10. So:

   1 - 7/10 = 10/10 - 7/10 = (10 - 7)/10 = 3/10

2. 1 - 1/15: Again, we need a common denominator, which is 15 in this case:

   1 - 1/15 = 15/15 - 1/15 = (15 - 1)/15 = 14/15

Now, you have:

3. 3/10 + 14/15: To add these fractions, you need a common denominator. The least common multiple of 10 and 15 is 30. So, you need to adjust both fractions:

   • For 3/10, you need to multiply both the numerator and denominator by 3 to get a denominator of 30:

     (3/10) * (3/3) = 9/30

   • For 14/15, you need to multiply both the numerator and denominator by 2 to get a denominator of 30:

     (14/15) * (2/2) = 28/30

Now, you can add the fractions with a common denominator of 30:

9/30 + 28/30 = (9 + 28)/30 = 37/30

So, the final result is:

3/10 + 14/15 = 37/30

However, 37/30 is an improper fraction. You can also express it as a mixed number:

37/30 = 1 7/30

So, 3/10 + 14/15 = 1 7/30.