3) 1/9× 1 5/6+ 1 1/6× 1/9 =
= 5/54+7/54=12/54=2/9
4) 1 3/8×3/5-3/5×1/8=
= 11/8×3/5-3/40= 33/40-3/40=
=30/40=3/4
Ответ:
в 3) 1/3. такий ответи
в 4)7/10
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3) 1/9× 1 5/6+ 1 1/6× 1/9 =
= 5/54+7/54=12/54=2/9
4) 1 3/8×3/5-3/5×1/8=
= 11/8×3/5-3/40= 33/40-3/40=
=30/40=3/4
Ответ:
в 3) 1/3. такий ответи
в 4)7/10