The numbers are coprime, so the answer is 1.
It evenly goes in 45 times.
53-13 = 40
13
the answer to 8 x 5 is 40
13 x 40 = 520
13 +40 = 53.
77 13 13 40 13 40 66
1 is the only number that goes into 29 and 40.
12 + 13 + 15 = 4012 + 13 + 15 = 4012 + 13 + 15 = 4012 + 13 + 15 = 40
It is: 13/40 times 100 = 32.5%
530 ÷ 40 = 13 10/40 = 13¼ = 13.25
They are 1 and 13 that goes into both numbers