I ONLY NEED A [SHORT] ANSWER AND NOW TOO how can you subtract mixed numbers when the fraction in the first mixed number is less than the fraction in the second mixed number? PLS HURRY!!!

Circle a has center of (2,3) and a radius of 5 and circle b has a center of (1,4) and a radius of 10. what steps will show that circle a is similar to circle b 1) dilate circle a by a scale factor of 2 2) translate circle a using the rule (x+1,y-1) 3) rotate circle a 180 degrees about the center 4) reflect circle a over the y-axis