Question

(1 7/10 + 4/5) : 1 7/8

Answer 1

Ответ:

Пошаговое объяснение:

( 1 7/10 + 4/5 ) : 1 7/8 = 1 1/3

1) 1 7/10 + 4/5  = 17/10 + 4/5 = 17/10 + 8/10 = 25/10 = 5/2 = 2 1/2

2) 2 1/2 : 1 7/8 = 5/2 : 15/8 = 5/2 * 8/15 = 1/1 * 4/3 = 4/3 = 1 1/3

Answer 2

To solve the expression (1 7/10 + 4/5) : 1 7/8, we need to follow the order of operations, which is typically remembered as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right).

Let's simplify the expression step by step:

Step 1: Convert mixed numbers to improper fractions. 1 7/10 can be written as (10 + 7)/10 = 17/10 1 7/8 can be written as (8 + 7)/8 = 15/8

Step 2: Perform addition. (17/10 + 4/5) = [(17 * 5) + (10 * 4)] / (10 * 5) = (85 + 40) / 50 = 125/50 = 5/2

Step 3: Perform division. (5/2) : (15/8) = (5/2) * (8/15) = (5 * 8) / (2 * 15) = 40/30 = 4/3

Therefore, the result of the expression (1 7/10 + 4/5) : 1 7/8 is 4/3.