252/12 = 21
21.8571
(12/25) / 21 dividing is the same thing as multiplying by the reciprocal. therefore you can say... (12/25) * (1/21) = 12/525
12/17 ÷ 4/21 = 63/17 or 312/17
1.75
246.5714
21 divided by 12 is 1.75 or 1 3/4
252/12 = 21
12
21
3/8 ÷ 12/21 = 63/96
21.8571
12 + 4=16+5=21 21 divided by 3= 7 your answer is 7
4/7 ÷ 12 = 1/21
(12/25) / 21 dividing is the same thing as multiplying by the reciprocal. therefore you can say... (12/25) * (1/21) = 12/525
12/21 x 7/4 = 84/84 = 1
12/17 ÷ 4/21 = 63/17 or 312/17