Determine the Difference of Mixed Numbers 18/69 and 68/21 easily using the Mixed Numbers Calculator and get the step by step process involved.






Elaborate Solution to find Difference of Mixed Numbers 18/69 and 68/21

The given mixed numbers are 18/69 and 68/21

Converting 18/69 mix number to fraction

Given Mixed Number is 1 8/69

A Mixed Number is an addition of it's whole number and fractional parts.

The Whole Number is 1 and the fractional part is 8/69.

On adding them, they can be written as:

1/1 + 8/69

The L.C.M of the denominators 1 and 69 is 69.

The numerator of the first fraction 1 is multiplied with the denominator of the second fraction 69.

1 x 69 + 8/69

69 + 8/69

After multiplying, the numerators 69 and 8 should be added.

77/69

The fraction value we get is 77/69.

After converting the Mixed Number 1 8/69 to the Improper Fraction,the result is 77/69.

Converting 68/21 mix number to fraction

Given Mixed Number is 6 8/21

A Mixed Number is an addition of it's whole number and fractional parts.

The Whole Number is 6 and the fractional part is 8/21.

On adding them, they can be written as:

6/1 + 8/21

The L.C.M of the denominators 1 and 21 is 21.

The numerator of the first fraction 6 is multiplied with the denominator of the second fraction 21.

6 x 21 + 8/21

126 + 8/21

After multiplying, the numerators 126 and 8 should be added.

134/21

The fraction value we get is 134/21.

After converting the Mixed Number 6 8/21 to the Improper Fraction,the result is 134/21.

Subtracting fractions 77/69 and 134/21

The given fractions are 77/69 and 134/21

Firstly the L.C.M should be done for the denominators of the two fractions 77/69 and 134/21

77/69 - 134/21

The LCM of 69 and 21 (denominators of the fractions) is 483
3 69, 21
23, 7

So the lcm of the given numbers is 3 x 23 x 7 = 483


= 77 x 7 - 134 x 23/483

= 539 - 3082/483

= -2543/483

Result: -2543/483