821/40 = 8.525
21/8 = 2 and 5/8 or 2.625.
The answer is 0.4
2.625
It is: 8.525
8/21 cannot be simplified as there is no common factor to 8 & 21. It can be expressed as a decimal 0.3809523 (to 7 dps)
21/8 = 2.625
It is: 21/100 = 0.21 as a decimal
2 over 21 as a decimal = 0.0952382 over 21= 2/21= 2 ÷ 21= 0.095238
21⁄25 = 0.8421 over 25 to a decimal = 0.8421/25:= 21 ÷ 25= 0.84 in decimal
7/21:= 7 ÷ 21= 0.333 in decimal
It is: 21/15 = 1.4 as a decimal