а)4 5/9+7 1/6=4 20/36+7 6/36=11 26/36=11 13/18
б)6 11/12+8 13/18=6 33/36+8 26/36=14 59/36=15 23/36
г)5 7/8+6 3/10=5 35/40+6 12/40=11 47/40=12 7/40
д)6 3/8+2 5/9=6 27/72+2 40/72=8 67/72
ж)33 2/5-11 1/8=33 16/40-11 5/40=22 11/40
з)8 13/16+8 13/14=8 91/112+8 104/112=16 195/112=17 83/112
к)25 11/15-18 7/10=25 22/30-18 21/30=7 1/30
л)42 1/9+2 4/25=42 25/225+2 36/225=44 61/225
а)4 5/9+7 1/6=4 20/36+7 6/36=11 26/36=11 13/18
б)6 11/12+8 13/18=6 33/36+8 26/36=14 59/36=15 23/36
г)5 7/8+6 3/10=5 35/40+6 12/40=11 47/40=12 7/40
д)6 3/8+2 5/9=6 27/72+2 40/72=8 67/72
ж)33 2/5-11 1/8=33 16/40-11 5/40=22 11/40
з)8 13/16+8 13/14=8 91/112+8 104/112=16 195/112=17 83/112
к)25 11/15-18 7/10=25 22/30-18 21/30=7 1/30
л)42 1/9+2 4/25=42 25/225+2 36/225=44 61/225