Question

(14,2/7+6,1/4)÷15/14

Answer 1

2.0358333333 как то так

Answer 2

To simplify the given expression, let's break it down step by step:

Expression: (14, 2/7 + 6, 1/4) ÷ 15/14

Step 1: Convert mixed numbers to improper fractions: 14, 2/7 = 14 + 2/7 = 98/7 6, 1/4 = 6 + 1/4 = 25/4

Step 2: Add the two fractions inside the parentheses: 98/7 + 25/4

To add these fractions, you need a common denominator. The least common multiple (LCM) of 7 and 4 is 28.

98/7 * 4/4 = 392/28 25/4 * 7/7 = 175/28

Now, add the fractions: 392/28 + 175/28 = 567/28

Step 3: Divide the result by 15/14: 567/28 ÷ 15/14

When dividing fractions, you can multiply by the reciprocal of the second fraction: 567/28 * 14/15

Simplify if possible: (567 * 14) / (28 * 15) = 7938 / 420 = 189/10 = 18.9

So, the simplified value of the expression is 18.9.