Question

2/3×9/7 4/10:4/15. 7/15×1 4/11

Answer 1

Ответ:

1=6/7 2=1 1/2 3=0,169

Пошаговое объяснение:

Answer 2

To simplify the given expressions, follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction):

1. 2/3 × 9/7: Multiply the numerators (2 × 9) and the denominators (3 × 7): (2/3) × (9/7) = 18/21

2. 4/10 : 4/15: To divide fractions, invert the second fraction and multiply: (4/10) ÷ (4/15) = (4/10) × (15/4) = 60/40

3. 7/15 × 1 4/11: To multiply a whole number and a mixed number, convert the whole number to a fraction with a denominator of 1: 1 = 1/1 Then multiply the fractions: (7/15) × (1 4/11) = (7/15) × (1 + 4/11) = (7/15) × (11/11 + 4/11) = (7/15) × (15/11) = 105/165

Now, let's simplify the results:

1. 18/21 simplifies to 6/7 (both numerator and denominator can be divided by 3).
2. 60/40 simplifies to 3/2 (both numerator and denominator can be divided by 20).
3. 105/165 simplifies to 7/11 (both numerator and denominator can be divided by 15).

Final results:

1. 2/3 × 9/7 = 6/7
2. 4/10 : 4/15 = 3/2
3. 7/15 × 1 4/11 = 7/11