Answer:
21 - q
Step-by-step explanation:
3 * 7 = 21
21 - q = 21 - q
Answer: 7/12
Step by step explanation:
To solve this you have to find a common denominator. To do this you have to multiply 1/3 (numerator and denominator) by 4 so it becomes 4/12. Then you have to multiply the numerator and denominator of 1/4 by 3 so the denominator of both fractions is 12. Now you will get. 4/12 + 3/12. To add this add the numerator and keep the denominator. Therefore it is 3+4/12=7/12