Question

More Menu Stuffmer GA-GSE Mathematics 7 Semester 1QuickDetermine the lowest common denominator for each sum or difference.13/24+7/127/6+ (-5/12)-3/4+(-2/3)5-7/101/8-5/33/2-4/5IntroFinding the Lowest Common DenominatorCommon Denominator: 10 Common Denominator: 12Common Denominator: 24✔DoneEnglish

Answer 1

Given -

(i) 13/24 + 7/12

(ii) 7/6 + (-5/12)

(iii) -3/4 + (-2/3)

(iv) 5 - 7/10

(v) 1/8 - 5/3

(vi) 3/2 - 4/5

To Find -

Lowest common Denominator =?

Step-by-Step Explanation -

(i) 13/24 + 7/12

`\frac{13\text{ + 2}*7}{24}\text{ = }(27)/(24)`

(ii) 7/6 + (-5/12)

`\frac{2*7\text{ - 5}}{12}\text{ = }(9)/(12)`

(iii) -3/4 + (-2/3)

`\frac{-3*3\text{ -2}*4}{12}\text{ = }(-9-8)/(12)\text{ = }(-17)/(12)`

(iv) 5 - 7/10

`\frac{5*10\text{ -7}}{10}\text{ = }(43)/(10)`

(v) 1/8 - 5/3

`\frac{1*3\text{ -5}*8}{24}\text{ = }\frac{3\text{ - 40}}{24}\text{ = }(-37)/(24)`

(vi) 3/2 - 4/5

`\frac{3*5\text{ - 2}*4}{10}\text{ = }\frac{15\text{ - 8}}{10}\text{ = }(7)/(10)`

Final Answer -

Lowest common Denominator =

(i) 24

(ii) 12

(iii) 12

(iv) 10

(v) 24

(vi) 10