Question

2 8/15 + ×= -1 7/10​

Answer 1

$2\frac{8}{15} +x=-1\frac{7}{10} \\\\x=-1\frac{7}{10} -2\frac{8}{15}\\\\x=\frac{51-76}{30} \\\\x=-\frac{25}{30} \\\\x=-\frac{5}{6}$

Answer 2

To solve the equation "2 8/15 + × = -1 7/10", we need to find the value of "×". Let's break down the steps to solve the equation:

Step 1: Convert mixed numbers to improper fractions: 2 8/15 = (2 * 15 + 8) / 15 = 38 / 15 -1 7/10 = (-1 * 10 + 7) / 10 = -3 / 10

Step 2: Rewrite the equation with fractions: 38 / 15 + × = -3 / 10

Step 3: To get rid of the fraction on the left side, we need to find a common denominator for 15 and 10, which is 30.

Step 4: Convert both fractions to have a common denominator of 30: (38/15) * (2/2) = 76/30 (-3/10) * (3/3) = -9/30

So, the equation becomes: 76 / 30 + × = -9 / 30

Step 5: Now, subtract 76/30 from both sides to isolate the variable "×": × = -9 / 30 - 76 / 30

Step 6: Combine the fractions on the right side: × = (-9 - 76) / 30 × = -85 / 30

Step 7: Simplify the fraction, if possible: × = -17/6

So, the value of "×" is -17/6.