Yes I can help you with the question you have displayed
2/3=14/21 and 5/7=15/21 so 14/21+15/21=29/21 or 1 and 8/21
No error - A and B are completely right, and using the subtraction law D is right
Answer:
-21
Step-by-step explanation:
2^2 equals 4, multiplied by 2 is 8, subtracted from 7(2) equals -6, sutracted from 15 gives up -21