Выполните действия:
1) (3/4 + 1/20) × 1/2=?
2) (7/12 - 1/3) × 16/19=?
3) (7 3/5 - 2 4/15) × 9/32=?
4) (11/24 + 1/6) × 1 3/5=?
5) (5 1/2 + 2 3/5) × 5/9=?
6) (7 - 2 5/16) × 4/25=?
Пж можно с объяснением! дарю 12 баллов!
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