40 \times 171 \%
Enrhifo
\frac{342}{5}=68.4
Ffactor
\frac{2 \cdot 3 ^ {2} \cdot 19}{5} = 68\frac{2}{5} = 68.4
Rhannu
Copïo i clipfwrdd
\frac{40\times 171}{100}
Mynegwch 40\times \frac{171}{100} fel ffracsiwn unigol.
\frac{6840}{100}
Lluosi 40 a 171 i gael 6840.
\frac{342}{5}
Lleihau'r ffracsiwn \frac{6840}{100} i'r graddau lleiaf posib drwy dynnu a chanslo allan 20.
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