Question

1/2+1/4+1/8+1/16+1/32+1/64+1/128+x=1.Then what is the value of x

Answer 1

Answer:

x=1/128

alternative form:

x=0.0078125

Step-by-step explanation:

1.you should put all fractions on th same doniminator( the lower part of the fraction ) which is 128

2.you should add all nominator ( upper part of the fraction ) which will give you 127 and the fraction will be

127/128 + x = 1

3.then you transfer the fraction from the left side to the right side which will give you x=1-127/128

explanation on why did the + became - :

when a number that have the postive sign ( + ) switches side it becomes negative ( - )and when a negative sign switches side it becomes + the sames goes for multiplication which is represented by a bracket it changes into division and division becomes multiplication

4. x=128/128 - 127/128

1 is a whole unit which represents the fraction full unit

5. x=1/128

or an alternative form of writing it is x=0.0078125

i recommended writing the first one