Question

-3/15 + 2/7 : 1/3Плиз help me please ​

Answer 1

-3/15 + 2/7 : 1/3 = 23/35

1) 2/7 : 1/3 = 2/7 * 3/1 = 6/7

2) -3/15 + 6/7 = -21+90/105 = 69/105 = 23/35

Ответ: 23/35

Answer 2

(1). -1/5+2/7*3/1
(2). -1/5+6/7
(3). -7+30/35
(4). 23/35

Ответ: 23/35

Answer 3

Certainly, I can help you with this arithmetic problem.

To solve the expression, you should follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right).

In your expression:

-3/15 + 2/7 ÷ 1/3

First, simplify the division (÷) by multiplying by the reciprocal (flipping the fraction):

-3/15 + 2/7 × 3/1

Now, multiply the fractions:

-3/15 + 6/7

To add or subtract fractions, you need a common denominator, which in this case is 105 (the least common multiple of 15 and 7):

-3/15 = -21/105 (multiply numerator and denominator by 7) 6/7 = 90/105 (multiply numerator and denominator by 15)

Now that both fractions have the same denominator, you can add them:

-21/105 + 90/105 = ( -21 + 90 ) / 105 = 69/105

Finally, you can simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 3:

(69 ÷ 3) / (105 ÷ 3) = 23/35

So, the final result is 23/35.