what is -1/3+7/4?

Question

dont change them into a decimal only as a fraction.

Answer 1

find a common denominator

the LCD is 3*4=12

write them as equal fractions with a common denominator of 12

(-1/3)=(-4/12)

(7/4)=(21/12)

(21/12)+(-4/12)=[21+(-4)]/12=[21-4]/12=17/12=1 5/12

Answer 2

-1/3 + 7/4 ;    firstly you will have to find the L.C.M. of the denominators and that is 3*4 = 12

 

Now multiply -1 by 4 and 7 by 3 

 

The expression will become   -4/12 + 21/12 = 17/12

Answer 3

What we need first is to get the LCD (Lowest Common Denominator).

In this case, the LCD is 3 * 4, which equals 12

-1/3 * 4/4 = -4/12

7/4 * 3/3 = 21/12

 

-4/12 + 21/12 = 17/12

Answer 4

(-4+21)/(4*3)=-17/12