23\75+4\25+8\15+8\91
1. 23/75=(23//75) 2. 4/25=0.16 3. (23//75)+0.16=(7//15) 4. 8/15=(8//15) 5. (7//15)+(8//15)=1 6. 8/91=(8//91) 7. 1+(8//91)=(99//91)
23/75 + 4/25 + 8/15 + 8/91 = 1 8/91 1) 23/75 + 4/25 = 23/75 + 12/75 = 35/75 = 7/15 2) 7/15 + 8/15 = 15/15 = 1 3) 1 + 8/91 = 1 8/91