Bjr
= 1/91 + -3/91
= 1-3/91
= -2/91
= - 2/91
= 21/55+-17/55
= 21-17/55
= 4/55
= 1/-19+7/-19
= - 1/19- 7/19
= -1-7/19
= -8/19
= - 8/19
= -4/-25+-2/-25
= 4/25+2/25
= 4+2/25
= 6/25
= -25/-31+2/-31
= 25/31+2/31
= 25+2/31
= 27/31
= -7/-61+82/-61
= 7/61+82/61
= 7+82/61
= 89/61
❤