This printable has 20 task cards that challenge students to find equivalent fractions while using pattern blocks.
These task cards mainly focus on halves, thirds, and fourths. A few sixths and twelfths are worked on though.
There is one bonus task card that further expands knowledge.
Get a sample Free at https://youvegotthismath.com/2016/03/15/equivalent-fraction-with-pattern-blocks/.