Binary fraction plotted against primary-star mass (left) and radius from the cluster center (right). On the left, we show the raw binary fraction for a given M ₁ bin for binaries with q ≥ 0.5, f _b,i(M ₁), normalized by the total raw binary fraction of the cluster for binaries with q ≥ 0.5, f _b,i. On the right, we plot binary fraction in bins of core radii away from the cluster center, f _b,i(r), normalized by the binary fraction within one core radius, f _b,i(r ₁).