Question

1/3加7/9加5/6加17/18加13/36用简便方法计算

Answer 1

1/3加7/9加5/6加17/18加13/36

=1+1/9+1-1/6+1-1/18+1/3+1/36

=2+1/6+1/18+1/36

=2+1/6+1/12

=2+1/4

=2又1/4