Subtract
1. 2/4 -1/4
2. 3/5-1/5
3. 6/8-4/8
1. 1/4
2. 2/5
3. 1/2
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Which type of decomposer can produce chemicals that are harmful to plants?(1 point)
Responses
aerobic microorganisms
aerobic microorganisms
anaerobic microorganisms
anaerobic microorganisms
centipedes
centipedes
earthworms
Anaerobic microorganisms can produce chemicals that are harmful to plants.
To subtract fractions, you need to have a common denominator. The denominator is the bottom number of a fraction that indicates the number of equal parts into which a whole is divided.
Let's solve each subtraction problem step by step:
1. 2/4 - 1/4
In this case, the denominators are already the same, so you can directly subtract the numerators: 2 - 1 = 1.
Therefore, the answer is 1/4.
2. 3/5 - 1/5
Again, the denominators are the same. Subtract the numerators: 3 - 1 = 2.
So, the answer is 2/5.
3. 6/8 - 4/8
Here, the denominators are already the same. Subtract the numerators: 6 - 4 = 2.
Hence, the answer is 2/8.
However, it is usually recommended to simplify the fraction if possible. In this case, 2/8 can be simplified by finding the greatest common divisor (GCD) of the numerator and denominator, which is 2. By dividing both numerator and denominator by 2, we get:
2 ÷ 2 / 8 ÷ 2 = 1/4.
So, the simplified answer is 1/4.