1/2减2/3的绝对值加2/3减3/4的绝对值.加98/99减99/100

问题描述:

1/2减2/3的绝对值加2/3减3/4的绝对值.加98/99减99/100

1/2减2/3的绝对值加2/3减3/4的绝对值........加98/99减99/100=49/100

1/2减2/3的绝对值加2/3减3/4的绝对值........加98/99减99/100
=2/3-1/2+3/4-2/3+……+99/100-98/99
=-1/2+99/100
=49/100

1/2减2/3的绝对值加2/3减3/4的绝对值.加98/99减99/100
=2/3-1/2+3/4-2/3+……+99/100-98/99
=-1/2+99/100
=49/100

99.5