Question

A scoutmaster bought 35m of rope. He used 4/7 of the rope for knot tying. How many meters of rope were used for knot tying?

Answer 1

In math...
"of" means ×
"is" means =

We need to find 4/7 of 35

4/7 of 35 = ?
4/7 × 35 = ?
4/7 × 35/1 = 140/7 = 20

He used 20 meters of rope.