Maths, find the Exact Value
posted by Aaron M .
have to find the exact value(so in fraction form.. like 1231231/41231 or something) of 2/3 + 3/4  2/11  5/21
I'm unsure of the working

2/3 + 3/4  2/11  5/21
3*4*11*7 = 924, so if we use that as our common denominator, the numerators add up to:
2*(4*11*7) + 3*(3*11*7)  2*(3*4*7)  5*(4*11) = 921
921/924 = 307/308