Question

What should be added to 12 by 3/4 to get 20 ?

Answer 1

Answer:

4

$\frac{12}{ \frac{3}{4} } + x = 20$

$\frac{12 \times 4}{3} + x = 20$

$16 + x = 20$

$x = 4$

Step-by-step explanation:

answer above with explanation (4)

Answer 2

Answer: 7 by 1/4

first, cross multiplicate 20 / 1 and 51 / 4  

    =  80-50 = 29                                      

= 29 divided by 4

= 01

in mixed fraction =  7 by 1 /4