Answer:





Step-by-step explanation:

Answer:
15
Explanation:
In order to multiply, put a 1 under 12 (12/1)
Multiply straight across
5 x 12/4 x 1
60/4 (simplify it)
and boom! 15/1 or 15
Okay. Combine like terms. You should get 12 + q = 12. subtract 12 from both sides. You'll get 0. q = 0.
10=2×5 and 14=2×7 so least common denominator will be 2×5×7=70
9/10=63/70
3/14=15/70
So 63/70-15/70=48/70=24/35