The answer is a
hope this help
Answer:
b
because when you try to find the common denominator the lowest number is 40. so you then multiply the 2x8 and the 3x5 that gives you 16/40 + 15/40 = 31/40
XD no sé que decir E=mc2 lo siento.
Answer:
Question 1: 4
Question 2: 16
Question 3: 34
Question 4: 46
Question 5: Subtraction
Question 6: Multiplication
Step-by-step explanation: