what should be subtracted from (3/4-2/3) to get 3
Answers
Answer:
What should be subtracted from -2/3 to get 3/4?
Let’s assume this is being asked by a kid. So let’s try to explain slowly.
Let’s find the value of x:
Formula: -2/3 - x = 3/4
>> -x = 3/4 + 2/3
To add the fractions with different denominators is to first find its LCD of 4 & 3 which is 12.
>> -x = 3/4 + 2/3
-x = (9+8)/12 (how? 12 divided by 4 equals 3 and then times 3 again which is the numerator of the first fraction = 9 ; 12 divided by 3 equals 4 and then times 2 again which is the numerator of the second fraction = 8)
>> -x = 17/12
>> x = -17/12
Answer is x = -17/12
Therefore, if you subtract -2/3 and -17/12 the result is 3/4
How?
>> -2/3 - (-17/12)
>> (-8+17)/12 (negative * negative = positive)
>> 9/12
Simplify 9/12 to its lowest form which is equal to 3/4
Thanks.