Question

8•2 1/4•(17/15-4/5)-3 3/7•7/12

Answer 1

Ответ на листочке ☺️ Думаю помогла

Answer 2

To simplify the expression, let's follow the order of operations (PEMDAS/BODMAS).

1. Start with the multiplication and division: 8 * 2 = 16

2. Next, simplify the fraction multiplication: 1/4 * (17/15 - 4/5) To subtract the fractions, we need to find a common denominator. The common denominator is 15, so we rewrite the expression: 1/4 * (17/15 - 12/15) Subtract the fractions: 1/4 * (5/15) Simplify the fraction: 1/4 * 1/3 = 1/12

3. Moving on to the final multiplication: 3 3/7 * 7/12 Convert the mixed number to an improper fraction: 3 * 7 + 3 = 24/7 + 3 = 24/7 + 21/7 = 45/7 Multiply the fractions: 45/7 * 7/12 Simplify the fraction: 45/12 = 15/4

Now we can put it all together: 16 + 1/12 - 15/4

To add and subtract these fractions, we need a common denominator. The common denominator for 12 and 4 is 12.

16 + 1/12 - 15/4 Convert 16 to a fraction with the common denominator of 12: 16 = 16 * 12/12 = 192/12

Now we can combine the fractions:

192/12 + 1/12 - 45/12 = (192 + 1 - 45)/12 = 148/12

Finally, we can simplify the fraction:

148/12 = 12 4/12 = 12 1/3

Therefore, the simplified expression is 12 1/3.