Question

Найдите значение a) 2×(-25) b) 0: (-6 5/8) c) ( - 3/4) : (-1 1/2)​

Answer 1

Ответ:

a) 2 * (-25) = -50

b) 0 / (-6 5/8) = 0

c) ( - 3/4) / (-1 1/2)​ = 3/4 * 2  = 3/2 = 1,5

Answer 2

a) 2 × (-25): 2 × (-25) = -50

b) 0 ÷ (-6 5/8): To divide by a mixed number, we first convert it to an improper fraction: -6 5/8 = -(6 × 8 + 5)/8 = -53/8

Now we can perform the division: 0 ÷ (-6 5/8) = 0 ÷ (-53/8)

Dividing by a fraction is the same as multiplying by its reciprocal: 0 ÷ (-53/8) = 0 × (-8/53) = 0

Therefore, 0 ÷ (-6 5/8) equals 0.

c) (-3/4) ÷ (-1 1/2): Similarly, we convert the mixed number to an improper fraction: -1 1/2 = -(1 × 2 + 1)/2 = -3/2

Now we can perform the division: (-3/4) ÷ (-1 1/2) = (-3/4) ÷ (-3/2)

Again, dividing by a fraction is the same as multiplying by its reciprocal: (-3/4) ÷ (-3/2) = (-3/4) × (-2/3) = 6/12

Simplifying the fraction, we get: 6/12 = 1/2

Therefore, (-3/4) ÷ (-1 1/2) equals 1/2.