Stage 3 · Fractions & Decimals
3.4.1 A Fraction Times a Whole Number: That Many of Them
3.4 Multiplying and Dividing Fractions: A Part of a Part, and Sharing in Reverse
Point 1 of 5
3.4.1 A Fraction Times a Whole Number: That Many of Them
Core idea3 of 2/5 just means adding 2/5 three times, so keep the bottom and multiply the top by 3 to get 6/5.
Module goal. Use area and the picture of "a part of a part" to understand fraction multiplication, use "equal sharing" for division, and master canceling and reciprocals.