Given
To subtract both fractions, the first step is to express the mixed fractions as improper fractions.
The subtraction expressed as improper fractions are
Second, you have to find the common denominator between 5 and 7 and express both fractions under said the common denominator. The common denominator for 5 and 7 is 35
To express the first fraction with denominator 35 you have to multiply both the numerator and denominator by 7
To express the second fraction with denominator 35, you have to multiply both the numerator and denominator by 5
The result of the calculation is
Expressed as a mixed fraction the result is