Question

1.4*3.6:0.2-4.2_____________3/4:0.2-1/4

Answer 1

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Answer 2

Let's break down each expression separately:

1. 1.4 * 3.6: Multiplying 1.4 by 3.6 gives us the result: 1.4 * 3.6 = 5.04

2. 0.2 - 4.2: Subtracting 4.2 from 0.2 gives us the result: 0.2 - 4.2 = -4.0

3. 3/4 : 0.2 - 1/4: Dividing 3 by 4 and then subtracting 1/4 from the result: (3/4) : 0.2 - 1/4 = (0.75 / 0.2) - (1/4)

To simplify further, we can convert the division to multiplication by the reciprocal: (0.75 / 0.2) - (1/4) = 0.75 * (1/0.2) - (1/4)

Calculating the values within parentheses: 0.75 * (1/0.2) = 0.75 * 5 = 3.75

Now subtracting 1/4: 3.75 - (1/4)

To subtract fractions, they need to have a common denominator: (3.75 * 4/4) - (1/4) = 15/4 - 1/4

Subtracting the numerators and keeping the common denominator: 15/4 - 1/4 = (15 - 1)/4 = 14/4 = 7/2

Therefore, 3/4 : 0.2 - 1/4 simplifies to 7/2.

In summary: 1.4 * 3.6 = 5.04 0.2 - 4.2 = -4.0 3/4 : 0.2 - 1/4 = 7/2