5 / 6 + 5 and 1 / 5 + 1 / 6 + 5.8

5 / 6 + 5 and 1 / 5 + 1 / 6 + 5.8

Equal to (5 / 6 + 1 / 6) + (26 / 5 + 29 / 5)
= 1+11
= 12
(5 and 1 / 5 = 26 / 5,,, 5.8 = 29 / 5)

Simple calculation of 8 out of 21 times 25 out of 18 times 63

8/21*25/18*63=8*25*63/21*18
=8*25*3/1*18
=4*25*3/1*9
=4*25*1/1*3
=100/3

In 221, 332, 443, 554 four scores, the largest number is______ The smallest number is______ ．

The reciprocal of 221 is 1012; the reciprocal of 332 is 1023; the reciprocal of 443 is 1034; the reciprocal of 554 is 1045. Because 1012 ＜ 1023 ＜ 1034 ＜ 1045, 221 ＞ 332 ＞ 443 ＞ 554, the largest number is 221 and the smallest number is 554. So the answer is: 221554