Question

(3 7/30-1 5/12):1/15​

Answer 1

Ответ:

27 1/4

Пошаговое объяснение:

1) 3 7/30 - 1 5/12 = 3 14/60 - 1 25/60 = 2 74/60 - 1 25/60 = 1 49/60

2) 109/60 * 15 = 109/4 = 27 1/4

Answer 2

Ответ:

3 7/30 - 1 5/12= 1 49/60

109/60 × 15 = 27 1/4

Answer 3

To solve this problem, we need to follow the order of operations (PEMDAS) and simplify the expression step by step.

First, we need to simplify the expression inside the parentheses:

(3 7/30 - 1 5/12) = (3 + 7/30) - (1 + 5/12)

= (90/30 + 7/30) - (12/12 + 5/12)

= (97/30) - (17/12)

Next, we need to find the common denominator to subtract the two fractions:

(97/30) - (17/12) = (497)/(430) - (1017)/(1012)

= 388/120 - 170/120

= 218/120

Now, we can simplify the expression by dividing both the numerator and denominator by their greatest common factor:

218/120 = (2109)/(260) = 109/60

Finally, we can divide by the fraction outside the parentheses:

109/60 ÷ 1/15 = 109/60 × 15/1

= 1635/60

= 273/4

Therefore, the final answer is 273/4 or 68 1/4 in mixed number form.