1. UNIT 07 February
1. Find if the following fractions are equivalent by diving:
𝒂𝒂)
𝟑𝟑
𝟓𝟓
𝒂𝒂𝒂𝒂𝒂𝒂
𝟔𝟔
𝟏𝟏𝟏𝟏
𝒃𝒃)
𝟏𝟏
𝟒𝟒
𝒂𝒂𝒏𝒏𝒏𝒏
𝟑𝟑
𝟖𝟖
𝒄𝒄)
𝟒𝟒
𝟔𝟔
𝒂𝒂𝒏𝒏𝒏𝒏
𝟔𝟔
𝟗𝟗
𝒅𝒅)
𝟐𝟐
𝟑𝟑
𝒂𝒂𝒏𝒏𝒏𝒏
𝟒𝟒
𝟗𝟗
2. Find all the equivalent fractions:
𝟐𝟐
𝟓𝟓
;
𝟏𝟏
𝟑𝟑
;
𝟓𝟓
𝟗𝟗
;
𝟔𝟔
𝟖𝟖
;
𝟓𝟓
𝟏𝟏𝟏𝟏
;
𝟗𝟗
𝟏𝟏𝟏𝟏
;
𝟓𝟓
𝟕𝟕
;
𝟏𝟏𝟏𝟏
𝟏𝟏𝟏𝟏
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.7.2.1
2. UNIT 07 February
3. Write three equivalent fractions to:
𝒂𝒂)
𝟐𝟐
𝟕𝟕
𝒃𝒃)
𝟑𝟑
𝟐𝟐
𝒄𝒄)
𝟔𝟔
𝟔𝟔
𝒅𝒅)
𝟖𝟖
𝟏𝟏𝟏𝟏
4. Cancel down these fractions:
𝒂𝒂)
𝟏𝟏𝟓𝟓
𝟐𝟐𝟎𝟎
𝒃𝒃)
𝟐𝟐𝟏𝟏
𝟐𝟐𝟖𝟖
𝒄𝒄)
𝟑𝟑𝟑𝟑
𝟐𝟐𝟐𝟐
𝒅𝒅)
𝟗𝟗
𝟏𝟏𝟐𝟐
𝒆𝒆)
𝟏𝟏𝟑𝟑
𝟐𝟐𝟔𝟔
𝒇𝒇)
𝟔𝟔𝟎𝟎𝟎𝟎
𝟖𝟖𝟎𝟎𝟎𝟎
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.7.2.2
3. UNIT 07 February
5. Find if the following fractions are equivalent using cross-product:
𝒂𝒂)
𝟏𝟏
𝟐𝟐
𝒂𝒂𝒏𝒏𝒏𝒏
𝟑𝟑
𝟒𝟒
𝒃𝒃)
𝟐𝟐
𝟓𝟓
𝒂𝒂𝒏𝒏𝒏𝒏
𝟔𝟔
𝟏𝟏𝟏𝟏
𝒄𝒄)
𝟒𝟒
𝟔𝟔
𝒂𝒂𝒏𝒏𝒏𝒏
𝟔𝟔
𝟗𝟗
𝒅𝒅)
𝟔𝟔
𝟖𝟖
𝒂𝒂𝒏𝒏𝒏𝒏
𝟗𝟗
𝟏𝟏𝟏𝟏
𝒆𝒆)
𝟐𝟐
𝟏𝟏𝟏𝟏
𝒂𝒂𝒏𝒏𝒏𝒏
𝟑𝟑
𝟐𝟐𝟎𝟎
𝒇𝒇)
𝟐𝟐𝟎𝟎
𝟐𝟐𝟐𝟐
𝒂𝒂𝒏𝒏𝒏𝒏
𝟑𝟑𝟎𝟎
𝟑𝟑𝟑𝟑
6. Find the value of “x”:
𝒂𝒂)
𝟓𝟓
𝟏𝟏𝟎𝟎
=
𝟑𝟑
𝒙𝒙
𝒃𝒃)
𝟒𝟒
𝒙𝒙
=
𝟖𝟖
𝟏𝟏𝟐𝟐
𝒄𝒄)
𝟐𝟐
𝟏𝟏𝟐𝟐
=
𝒙𝒙
𝟏𝟏𝟖𝟖
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.7.2.3
4. UNIT 07 February
𝒅𝒅)
𝒙𝒙
𝟏𝟏𝟏𝟏
=
𝟒𝟒
𝟐𝟐𝟎𝟎
𝒆𝒆)
𝟑𝟑
𝟐𝟐𝟏𝟏
=
𝟐𝟐𝟎𝟎
𝒙𝒙
𝒇𝒇)
𝟏𝟏𝟐𝟐
𝒙𝒙
=
𝟏𝟏𝟔𝟔
𝟐𝟐𝟎𝟎
7. A worker earns 1,800 € per month and he wastes three tenths to pay the
mortgage. How much he pays per month?
8. A worker pays 540 € on his mortgage, that is the three tenths of his salary. How
much he earns?
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.7.2.4