Fractions

⅗ of 30 = 18

30 divided the bottom number (5)= 6

And then we get the 6 from the previous answer and  times it with the top number (3)= 18

Same Here

⅞ of 40 = 35

40 divided the bottom number (8)= 5

And once again 5 times the top number (7)= 35

4/6 of 42 = 28

42 divided 6 = 7

7 times 4 = 28

⅔ of 33 = 22

33 divided 3 = 11

11 times 2 = 22

3/10 of 100 = 30

100 divided 10 = 10

10 times 3 = 30

⅜ of 128 = 48

128 divided 8 = 16

16 times 3 = 48