MathsGod1

its near the numbers on the plus - ctrl

The ugly and scruffy work is the best work.

(Unless you write it out again LOL)

$${\frac{{\mathtt{21}}}{{\mathtt{36}}}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{20}}}{{\mathtt{36}}}}$$

$${\mathtt{21}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{20}}}{{\mathtt{36}}}}$$

i typed in 21+20/36 and got that. (which i don't want i want the 21 also on the numerator.

21+20=41

41/36

$${\frac{{\mathtt{7}}{\mathtt{\,\times\,}}{\mathtt{3}}}{{\mathtt{12}}}}{\mathtt{\,\times\,}}{\mathtt{3}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{5}}{\mathtt{\,\times\,}}{\mathtt{4}}}{{\mathtt{9}}}}{\mathtt{\,\times\,}}{\mathtt{4}}$$

This is what i wrote 7*3/12*3 + 5*4/9*4 and i got that...

Silly mistake. 

Thanks Alan

Thank you CPhill :)

My problem is how did you know when or when not to factorise?

Thanks Melody :)

The smallest denominator is 3.

$${\frac{{\mathtt{7}}}{{\mathtt{12}}}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{5}}}{{\mathtt{9}}}}$$

$$\mathrm{ERROR} = {\frac{{\mathtt{7}}{\mathtt{\,\times\,}}{\mathtt{4}}}{{\mathtt{12}}}}{\mathtt{\,\times\,}}{\mathtt{4}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{5}}{\mathtt{\,\times\,}}{\mathtt{3}}}{{\mathtt{9}}}}{\mathtt{\,\times\,}}{\mathtt{4}}$$

Umm...I had done what you done with your example on Math Formula and this came up.

And also when you done 3 & 5, 15 was bigger than both so you could times it by 5 & 3 but to times 12 and 9 by something to get 3. Would be a decimal.

1/4 = 2.5 (25) (25%)

$${\frac{{\mathtt{4\,000}}}{{\mathtt{25}}}} = {\mathtt{160}}$$

What is this?