Answer:
![(7)/(12)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/rlsqqbkbsw6amdr0p450qjkcesslsf3ua0.png)
Explanation:
![2 (1)/(3) - 1 (3)/(4)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/t0f01nmbwakanea2xwl9t836pf3bnwjg2q.png)
The fractions above are known as mixed numbers (that is, fractions that contain the combination of a whole number and proper fraction). The mixed numbers can equally be renamed as improper fractions. However, renaming can only occur the the mixed numbers are being transformed as below:
![(7)/(3) - (7)/(4)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/s56xuruoz9s8l6mvl786ilrlmtp7jv3apu.png)
The transformation occur through a simple approach thus: for the first mixed number; 2 1/3 = 2 multiplied by 3 plus 1 divide by 3 equals 7/3. Similarly, mixed number 1 3/4 is transformed by this: 1 multiplied by 4 plus 3 divide by 4 equals 7/4.
Simplifying further to arrive at final result implies,
![(7)/(3) - (7)/(4)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/s56xuruoz9s8l6mvl786ilrlmtp7jv3apu.png)
Take the LCM of the denominators (4 × 3 =12) and simplify thus:
![= (28 - 21)/(12)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/32jag7nps0u2k57afikx0pxadqybvkirne.png)
![= (7)/(12)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/rsovl0vbahaoaom0bxe8mb5ep304yixncp.png)