Question

А) 3/4 × 5/7= б) 1/8 × 3/4 = в) 4/7 ×5/6 = г) 2/5 × 7/11=

Answer 1

Ответ:

а)15/28

б) 3/32

в) 20/42=10/21

г) 14/55

Answer 2

а) To multiply fractions, you simply multiply the numerators (top numbers) together to get the new numerator, and multiply the denominators (bottom numbers) together to get the new denominator. So, for 3/4 × 5/7:

Numerator: 3 × 5 = 15 Denominator: 4 × 7 = 28

Therefore, 3/4 × 5/7 = 15/28.

б) Similarly, for 1/8 × 3/4:

Numerator: 1 × 3 = 3 Denominator: 8 × 4 = 32

So, 1/8 × 3/4 = 3/32.

в) For 4/7 × 5/6:

Numerator: 4 × 5 = 20 Denominator: 7 × 6 = 42

Hence, 4/7 × 5/6 = 20/42, which can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 2. So, the simplified result is 10/21.

г) Lastly, for 2/5 × 7/11:

Numerator: 2 × 7 = 14 Denominator: 5 × 11 = 55

Therefore, 2/5 × 7/11 = 14/55.