26p2 q5 r3 t8
39p q6 r5 t s7
simplify 1+2/3-4/5+6/7
205
factorize
145
3 x 3 x -2-5 x-2 x 4-3-2 x 4
95
A class of 30 pupils consists of 19 girls, 3 of whom are left-handed, and 11 boys,
2 of whom are left-handed. Two pupils are to b...
5 2/7+3 5/7
over
4 -2 4/5
5 2/7+ 3 5/7 over 4- 2 4/5=
\frac{1}{\sqrt{3+\sqrt{7}}}+\frac{1}{\sqrt{3-\sqrt{7}}}
