More than one slice
Before you read anything
Twenty counters, four equal piles. Make them.
Now push three of the piles together. Count what you have pushed together — and do it before you read on.
Find one, then take that many
Two numbers, two jobs. The bottom one made the pieces; the top one counted how many you took.
This is module 6 again
Finding $\frac{1}{4}$ of $20$ is sharing twenty between four. Finding $\frac{3}{4}$ of it is that, and then taking three — which is exactly find one unit, then scale it, the move module 6 ended on.
Nothing here is new. Only the way of writing it down.
Where it goes wrong
found a quarter of 20 and wrote 5
Nakato did the division and stopped. Five is what one quarter is worth; the question asked for three of them.
Reading it out loud fixes it
Say three quarters as "three of the quarters" and the second step is already in the sentence. A learner who reads it as one lump — "three-quarters" — has nothing to remind them.
Check yourself
Six to try
What is $\frac{1}{5}$ of $15$?
What is $\frac{3}{4}$ of $32$?
What is $\frac{1}{12}$ of $120$?
What is $\frac{7}{10}$ of $60$?
What is $\frac{6}{8}$ of $16$?
How many fifths make one whole?
Show that you have it
Both steps
What is $\frac{9}{10}$ of $60$?
How many sixths make one whole?
Next: The same amount, cut again The whole thing on one page