First you have to convert the denominators to the Lowest Common Multiple (unless the denominators are equal, of course).
Example 1/4 + 1/2
The LCM of 2 and 4 = 4 so we can write 1/2 as 1*2/2*2 = 2/4.
Now we can add:-
1/4 + 2/4 = 3/4.
Same thing goes for subtraction.
Example 2:-
5/6 - 1/7 :-
LCM of 6 and 7 = 6*7 = 42 so we have:-
5*7 / 6*7 - 1*6 / 7*6
= 35/42 - 6/42 = 29/42
Answer:
6
Step-by-step explanation:
Multiplying both sides by 3, we have 12x - 24 = 48. Adding both sides by 24, we have 12x = 72. That means x = 6
Can I have brainliest
Last one 1/4x
because the opposite of 1/4 is 4/1
the correct answer is 4810 bacteria grew after 9 hours
Answer:
(B) 1.2 > -6.9
Explanation:
The negative numbers/decimals are always to the left of the 0 on a number line. They are not positive.
The positive numbers are always to the right of the 0 on a number line. They are always greater than negative numbers.
6.9 might be greater than 1.2 if it is a positive number, but if it is a negative number, 1.2 is greater.
