Answer:
1 2/3.
Step-by-step explanation:
4 - 2 3/9
= 4 - 2 1/3
= 4 - 7/3
= 12/3 - 7/3
= 5/3
= 1 2/3
22-42+5 is -15 so basically -15 i not equal to 0
i think the answer would be 20
3 groups of 10 not 4 and 7 ones
trust