Question

9 5/7-7 12/28плиз!!!!

Answer 1

Ответ:2 2/7

Пошаговое объяснение:

(9-7)+(20/28-12/28)=2+8/28=2+2/7

Answer 2

To solve the expression, "9 5/7 - 7 12/28," we need to convert the mixed numbers to improper fractions and then perform the subtraction.

Step 1: Convert mixed numbers to improper fractions. 9 5/7 = (7 * 9 + 5) / 7 = 68/7 7 12/28 = (28 * 7 + 12) / 28 = 196/28

Step 2: Subtract the fractions. 68/7 - 196/28

Step 3: Find a common denominator for the fractions (in this case, it's 28). To convert 68/7 to have a denominator of 28, we multiply both the numerator and denominator by 4: 68/7 * 4/4 = 272/28

Now we have the expression: 272/28 - 196/28

Step 4: Perform the subtraction: 272/28 - 196/28 = (272 - 196) / 28 = 76/28

Step 5: Simplify the fraction, if possible. To simplify the fraction 76/28, we find the greatest common divisor (GCD) of the numerator and denominator, which is 4. Divide both the numerator and denominator by the GCD: 76/4 ÷ 28/4 = 19/7

So, the result of the expression "9 5/7 - 7 12/28" is 19/7.