Step-by-step explanation:
21/56 = (3 ×7)/ (2×2×2 ×7)
=3/(2×2×2)
=3/8
Answer:
[tex] \frac{3}{8}[/tex]
[tex]\begin{aligned} \footnotesize \frac{21}{56} &= \footnotesize \frac{3 \times \cancel{7}}{ {2}^{3} \times \cancel{7}} \\ & \footnotesize= \bold{ \frac{3}{8} } \end{aligned}[/tex]
