To solve this all you need to do is take the fraction 2/5 and multiply it by a number (this means you multiply BOTH the denominator and the numerator)
1. Multiply the original fraction by 2:
![(2*2)/(5*2) = (4)/(10)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/eedfx5iezwawjm8unhskr3si1x9a039hnq.png)
2. Multiply the original fraction by 3:
![(2*3)/(5*3) = (6)/(15)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/lbyojk8rrnxbgnfz3uvoiot67lpxa6cubt.png)
3. Multiply the original fraction by 4:
![(2*4)/(5*4) = (8)/(20)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/moz8n5w38agacp6ya4c01ufnjmob2kkd35.png)
4. Multiply the original fraction by 5:
![(2*5)/(5*5) = (10)/(25)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/s56ns3kvdv11l2jo3mawdp5k0fw8waua6q.png)
5. Multiply the original fraction by 6:
![(2*6)/(5*6) = (12)/(30)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/szkw517oprj6q4usj9hhtwo4uojuzpl4ut.png)
All of the fractions above are equal to 2/5 and to each other. You can keep doing this with higher numbers if you wold like, but these are just a few examples.
Hope this helped!