Question

5) 3 2/7 × 3 6) 5 3/8 × 2

Answer 1

..............................................

Answer 2

Ответ:

5)9 6/7

6)10 3/4

Пошаговое объяснение:

в 5 надо 7*3+2=23/7*3/1=69/7=9 6/7

6)8*5+3=43/8*2/1 =43/4

8 и 2 сокращаютя

Answer 3

To multiply mixed numbers, follow these steps:

1. Convert each mixed number to an improper fraction.
2. Multiply the numerators of the fractions.
3. Multiply the denominators of the fractions.
4. Simplify the resulting fraction, if possible, by reducing it to lowest terms or converting it back to a mixed number.

Let's apply these steps to the given problems:

1. 3 2/7 × 3:

Step 1: Convert 3 2/7 to an improper fraction. 3 2/7 = (3 × 7 + 2)/7 = 23/7

Step 2: Multiply the numerators. 23/7 × 3 = 69/7

Step 3: Multiply the denominators. 7 × 1 = 7

Step 4: Simplify the resulting fraction. 69/7 cannot be simplified further, so it remains as 69/7.

Therefore, 3 2/7 × 3 = 69/7.

2. 5 3/8 × 2:

Step 1: Convert 5 3/8 to an improper fraction. 5 3/8 = (5 × 8 + 3)/8 = 43/8

Step 2: Multiply the numerators. 43/8 × 2 = 86/8

Step 3: Multiply the denominators. 8 × 1 = 8

Step 4: Simplify the resulting fraction. 86/8 can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 2. 86/8 ÷ 2/2 = 43/4

Therefore, 5 3/8 × 2 = 43/4.